diff --git a/README.md b/README.md
index bd5e635..90f0d5b 100644
--- a/README.md
+++ b/README.md
@@ -26,10 +26,18 @@ Or you can use (non-interactive) direct execution:
 
 `git quick-stats <optional-command-to-execute-directly>`
 
-Possible arguments: 
-suggestReviewers, detailedGitStats, commitsPerDay, commitsPerAuthor, myDailyStats, contributors,
+> Possible arguments: 
+> suggestReviewers, detailedGitStats, commitsPerDay, commitsPerAuthor, myDailyStats, contributors,
 branchTree, branchesByDate, changelogs
 
+
+You can set variable `_GIT_SINCE`, `_GIT_UNTIL` and limit the git log
+
+eg:
+`export _GIT_SINCE="2017-20-01"`
+`export _GIT_UNTIL="2017-22-01"`
+then run `./git-quick-stats` (affect all stats, except "My daily status" and "Git changelogs" )
+
 ## Installation
 
 ```