git-bug, git-cola, gitlint: add page (#6444)

pages/common/git-cola.md

@@ -0,0 +1,24 @@
+# git cola
+
+> A powerful Git GUI with a slick and intuitive user interface.
+> More information: <https://git-cola.readthedocs.io/en/latest/>.
+
+- Start git cola:
+
+`git cola`
+
+- Start git cola in amend mode:
+
+`git cola --amend`
+
+- Prompt for a Git repository. Defaults to the current directory:
+
+`git cola --prompt`
+
+- Open the Git repository at mentioned path:
+
+`git cola --repo {{path/to/git-repository}}`
+
+- Apply the path filter to the status widget:
+
+`git cola --status-filter {{filter}}`