git-column: add page (#5108)

pages/common/git-column.md

@@ -0,0 +1,16 @@
+# git column
+
+> Display data in columns.
+> More information: <https://git-scm.com/docs/git-column>.
+
+- Format the standard input as multiple columns:
+
+`ls | git column --mode={{column}}`
+
+- Format the standard input as multiple columns with a maximum width of `100`:
+
+`ls | git column --mode=column --width={{100}}`
+
+- Format the standard input as multiple columns with a maximum padding of `30`:
+
+`ls | git column --mode=column --padding={{30}}`