diff --git a/man/git-guilt.1 b/man/git-guilt.1
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+.\" generated with Ronn/v0.7.3
+.\" http://github.com/rtomayko/ronn/tree/0.7.3
+.
+.TH "GIT\-GUILT" "1" "April 2015" "" "Git Extras"
+.
+.SH "NAME"
+\fBgit\-guilt\fR \- calculate change between two revisions
+.
+.SH "SYNOPSIS"
+git guilt [<option>] <since> <until>
+.
+.SH "DESCRIPTION"
+calculate the change in blame between two revisions
+.
+.SH "OPTIONS"
+\-h, \-\-help
+.
+.P
+output usage information
+.
+.P
+\-e, \-\-email
+.
+.P
+display author emails instead of names
+.
+.P
+\-w, \-\-ignore\-whitespace
+.
+.P
+ignore whitespace only changes when attributing blame
+.
+.P
+\-d, \-\-debug
+.
+.P
+output debug information
+.
+.SH "Examples"
+Find blame delta between two commits:
+.
+.IP "" 4
+.
+.nf
+
+$ git guilt HEAD~2 HEAD
+spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(115)
+Jesse Sipprell                \-
+.
+.fi
+.
+.IP "" 0
+.
+.P
+Find blame delta over the last three weeks:
+.
+.IP "" 4
+.
+.nf
+
+$ git guilt `git log \-\-until="3 weeks ago" \-\-format="%H" \-n 1` HEAD
+Paul Schreiber                +++++++++++++++++++++++++++++++++++++++++++++(349)
+spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(113)
+Mark Eissler                  ++++++++++++++++++++++++++
+CJ                            +++++
+nickl\-                        \-
+Jesse Sipprell                \-
+Evan Grim                     \-
+Ben Parnell                   \-
+hemanth\.hm                    \-\-
+.
+.fi
+.
+.IP "" 0
+.
+.P
+Find blame delta for a topic branch:
+.
+.IP "" 4
+.
+.nf
+
+$ git guilt `git merge\-base master git\-guilt` git\-guilt
+spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(112)
+.
+.fi
+.
+.IP "" 0
+.
+.SH "AUTHOR"
+Written by spacewander <\fIspacewanderlzx@gmail\.com\fR>
+.
+.SH "REPORTING BUGS"
+<\fIhttps://github\.com/tj/git\-extras/issues\fR>
+.
+.SH "SEE ALSO"
+<\fIhttps://github\.com/tj/git\-extras\fR>
diff --git a/man/git-guilt.html b/man/git-guilt.html
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+<!DOCTYPE html>
+<html>
+<head>
+  <meta http-equiv='content-type' value='text/html;charset=utf8'>
+  <meta name='generator' value='Ronn/v0.7.3 (http://github.com/rtomayko/ronn/tree/0.7.3)'>
+  <title>git-guilt(1) - calculate change between two revisions</title>
+  <style type='text/css' media='all'>
+  /* style: man */
+  body#manpage {margin:0}
+  .mp {max-width:100ex;padding:0 9ex 1ex 4ex}
+  .mp p,.mp pre,.mp ul,.mp ol,.mp dl {margin:0 0 20px 0}
+  .mp h2 {margin:10px 0 0 0}
+  .mp > p,.mp > pre,.mp > ul,.mp > ol,.mp > dl {margin-left:8ex}
+  .mp h3 {margin:0 0 0 4ex}
+  .mp dt {margin:0;clear:left}
+  .mp dt.flush {float:left;width:8ex}
+  .mp dd {margin:0 0 0 9ex}
+  .mp h1,.mp h2,.mp h3,.mp h4 {clear:left}
+  .mp pre {margin-bottom:20px}
+  .mp pre+h2,.mp pre+h3 {margin-top:22px}
+  .mp h2+pre,.mp h3+pre {margin-top:5px}
+  .mp img {display:block;margin:auto}
+  .mp h1.man-title {display:none}
+  .mp,.mp code,.mp pre,.mp tt,.mp kbd,.mp samp,.mp h3,.mp h4 {font-family:monospace;font-size:14px;line-height:1.42857142857143}
+  .mp h2 {font-size:16px;line-height:1.25}
+  .mp h1 {font-size:20px;line-height:2}
+  .mp {text-align:justify;background:#fff}
+  .mp,.mp code,.mp pre,.mp pre code,.mp tt,.mp kbd,.mp samp {color:#131211}
+  .mp h1,.mp h2,.mp h3,.mp h4 {color:#030201}
+  .mp u {text-decoration:underline}
+  .mp code,.mp strong,.mp b {font-weight:bold;color:#131211}
+  .mp em,.mp var {font-style:italic;color:#232221;text-decoration:none}
+  .mp a,.mp a:link,.mp a:hover,.mp a code,.mp a pre,.mp a tt,.mp a kbd,.mp a samp {color:#0000ff}
+  .mp b.man-ref {font-weight:normal;color:#434241}
+  .mp pre {padding:0 4ex}
+  .mp pre code {font-weight:normal;color:#434241}
+  .mp h2+pre,h3+pre {padding-left:0}
+  ol.man-decor,ol.man-decor li {margin:3px 0 10px 0;padding:0;float:left;width:33%;list-style-type:none;text-transform:uppercase;color:#999;letter-spacing:1px}
+  ol.man-decor {width:100%}
+  ol.man-decor li.tl {text-align:left}
+  ol.man-decor li.tc {text-align:center;letter-spacing:4px}
+  ol.man-decor li.tr {text-align:right;float:right}
+  </style>
+</head>
+<!--
+  The following styles are deprecated and will be removed at some point:
+  div#man, div#man ol.man, div#man ol.head, div#man ol.man.
+
+  The .man-page, .man-decor, .man-head, .man-foot, .man-title, and
+  .man-navigation should be used instead.
+-->
+<body id='manpage'>
+  <div class='mp' id='man'>
+
+  <div class='man-navigation' style='display:none'>
+    <a href="#NAME">NAME</a>
+    <a href="#SYNOPSIS">SYNOPSIS</a>
+    <a href="#DESCRIPTION">DESCRIPTION</a>
+    <a href="#OPTIONS">OPTIONS</a>
+    <a href="#Examples">Examples</a>
+    <a href="#AUTHOR">AUTHOR</a>
+    <a href="#REPORTING-BUGS">REPORTING BUGS</a>
+    <a href="#SEE-ALSO">SEE ALSO</a>
+  </div>
+
+  <ol class='man-decor man-head man head'>
+    <li class='tl'>git-guilt(1)</li>
+    <li class='tc'>Git Extras</li>
+    <li class='tr'>git-guilt(1)</li>
+  </ol>
+
+  <h2 id="NAME">NAME</h2>
+<p class="man-name">
+  <code>git-guilt</code> - <span class="man-whatis">calculate change between two revisions</span>
+</p>
+
+<h2 id="SYNOPSIS">SYNOPSIS</h2>
+
+<p>git guilt [&lt;option&gt;] &lt;since&gt; &lt;until&gt;</p>
+
+<h2 id="DESCRIPTION">DESCRIPTION</h2>
+
+<p>calculate the change in blame between two revisions</p>
+
+<h2 id="OPTIONS">OPTIONS</h2>
+
+<p>  -h, --help</p>
+
+<p>  output usage information</p>
+
+<p>  -e, --email</p>
+
+<p>  display author emails instead of names</p>
+
+<p>  -w, --ignore-whitespace</p>
+
+<p>  ignore whitespace only changes when attributing blame</p>
+
+<p>  -d, --debug</p>
+
+<p>  output debug information</p>
+
+<h2 id="Examples">Examples</h2>
+
+<p>Find blame delta between two commits:</p>
+
+<pre><code>$ git guilt HEAD~2 HEAD
+spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(115)
+Jesse Sipprell                -
+</code></pre>
+
+<p>Find blame delta over the last three weeks:</p>
+
+<pre><code>$ git guilt `git log --until="3 weeks ago" --format="%H" -n 1` HEAD 
+Paul Schreiber                +++++++++++++++++++++++++++++++++++++++++++++(349)
+spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(113)
+Mark Eissler                  ++++++++++++++++++++++++++
+CJ                            +++++
+nickl-                        -
+Jesse Sipprell                -
+Evan Grim                     -
+Ben Parnell                   -
+hemanth.hm                    --
+</code></pre>
+
+<p>Find blame delta for a topic branch:</p>
+
+<pre><code>$ git guilt `git merge-base master git-guilt` git-guilt 
+spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(112)
+</code></pre>
+
+<h2 id="AUTHOR">AUTHOR</h2>
+
+<p>Written by spacewander &lt;<a href="&#x6d;&#97;&#x69;&#x6c;&#116;&#111;&#x3a;&#x73;&#112;&#x61;&#x63;&#101;&#x77;&#x61;&#110;&#x64;&#x65;&#114;&#x6c;&#122;&#x78;&#x40;&#x67;&#x6d;&#x61;&#x69;&#x6c;&#x2e;&#99;&#x6f;&#109;" data-bare-link="true">&#115;&#112;&#x61;&#x63;&#101;&#x77;&#97;&#110;&#x64;&#x65;&#x72;&#x6c;&#122;&#120;&#x40;&#x67;&#x6d;&#x61;&#105;&#108;&#x2e;&#99;&#x6f;&#109;</a>&gt;</p>
+
+<h2 id="REPORTING-BUGS">REPORTING BUGS</h2>
+
+<p>&lt;<a href="https://github.com/tj/git-extras/issues" data-bare-link="true">https://github.com/tj/git-extras/issues</a>&gt;</p>
+
+<h2 id="SEE-ALSO">SEE ALSO</h2>
+
+<p>&lt;<a href="https://github.com/tj/git-extras" data-bare-link="true">https://github.com/tj/git-extras</a>&gt;</p>
+
+
+  <ol class='man-decor man-foot man foot'>
+    <li class='tl'></li>
+    <li class='tc'>April 2015</li>
+    <li class='tr'>git-guilt(1)</li>
+  </ol>
+
+  </div>
+</body>
+</html>
diff --git a/man/git-guilt.md b/man/git-guilt.md
new file mode 100644
index 0000000..ada6bdf
--- /dev/null
+++ b/man/git-guilt.md
@@ -0,0 +1,66 @@
+git-guilt(1) -- calculate change between two revisions
+========================================
+
+## SYNOPSIS
+
+git guilt [&lt;option&gt;] &lt;since&gt; &lt;until&gt;
+
+## DESCRIPTION
+
+calculate the change in blame between two revisions
+
+## OPTIONS
+
+  -h, --help
+
+  output usage information
+
+  -e, --email
+
+  display author emails instead of names
+
+  -w, --ignore-whitespace
+
+  ignore whitespace only changes when attributing blame
+
+  -d, --debug
+
+  output debug information
+
+## Examples
+
+Find blame delta between two commits:
+
+    $ git guilt HEAD~2 HEAD
+    spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(115)
+    Jesse Sipprell                -
+
+Find blame delta over the last three weeks:
+
+    $ git guilt `git log --until="3 weeks ago" --format="%H" -n 1` HEAD 
+    Paul Schreiber                +++++++++++++++++++++++++++++++++++++++++++++(349)
+    spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(113)
+    Mark Eissler                  ++++++++++++++++++++++++++
+    CJ                            +++++
+    nickl-                        -
+    Jesse Sipprell                -
+    Evan Grim                     -
+    Ben Parnell                   -
+    hemanth.hm                    --
+
+Find blame delta for a topic branch:
+
+    $ git guilt `git merge-base master git-guilt` git-guilt 
+    spacewander                   +++++++++++++++++++++++++++++++++++++++++++++(112)
+
+## AUTHOR
+
+Written by spacewander &lt;<spacewanderlzx@gmail.com>&gt;
+
+## REPORTING BUGS
+
+&lt;<https://github.com/tj/git-extras/issues>&gt;
+
+## SEE ALSO
+
+&lt;<https://github.com/tj/git-extras>&gt;
