Move pages under tldr, lint run.sh, update docs

tldr/git-ignore

@@ -0,0 +1,26 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# git ignore
+
+> Show/update `.gitignore` files.
+> Part of `git-extras`. See also `git ignore-io`.
+> More information: <https://github.com/tj/git-extras/blob/master/Commands.md#git-ignore>.
+
+- Show the content of all global and local `.gitignore` files:
+
+`git ignore`
+
+- Ignore file(s) privately, updating `.git/info/exclude` file:
+
+`git ignore {{file_pattern}} --private`
+
+- Ignore file(s) locally, updating local `.gitignore` file:
+
+`git ignore {{file_pattern}}`
+
+- Ignore file(s) globally, updating global `.gitignore` file:
+
+`git ignore {{file_pattern}} --global`