chore: add LICENSE content

.pre-commit-config.yaml

@@ -0,0 +1,22 @@
+repos:
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v3.4.0
+  hooks:
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+  - id: check-added-large-files
+  - id: mixed-line-ending
+- repo: local
+  hooks:
+  - id: update-license
+    name: update license
+    pass_filenames: false
+    language: system
+    always_run: true
+    entry: >
+      sh -c '
+        (curl -fsSL https://wfxr.mit-license.org/2017/license.txt && echo) > ./LICENSE &&
+            git add ./LICENSE || { git checkout ./LICENSE && exit 1; }
+      '

LICENSE

@@ -1 +1,21 @@
-https://wfxr.mit-license.org/2017
+The MIT License (MIT)
+
+Copyright © 2017-2021 Wenxuan Zhang <wenxuangm@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the “Software”), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.