git-ls-files: add page (#4753)

pages/common/git-ls-files.md

@@ -0,0 +1,16 @@
+# git ls-files
+
+> Show information about files in the index and the working tree.
+> More information: <https://git-scm.com/docs/git-ls-files>.
+
+- Show deleted files:
+
+`git ls-files --deleted`
+
+- Show modified and deleted files:
+
+`git ls-files --modified`
+
+- Show ignored and untracked files:
+
+`git ls-files --others`