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

tldr/git-column

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# git column
+
+> Display data in columns.
+> More information: <https://git-scm.com/docs/git-column>.
+
+- Format `stdin` as multiple columns:
+
+`ls | git column --mode={{column}}`
+
+- Format `stdin` as multiple columns with a maximum width of `100`:
+
+`ls | git column --mode=column --width={{100}}`
+
+- Format `stdin` as multiple columns with a maximum padding of `30`:
+
+`ls | git column --mode=column --padding={{30}}`