docs: fix broken table formatting warning

Author: consideRatio

docs/source/developer/repoproviders.rst

@@ -24,7 +24,7 @@ Currently supported providers, their prefixes and specs are:
     | GitHub     | ``gh``             | ``<user>/<repo>/<commit-sha-or-tag-or-branch>``             | `GitHub <https://github.com/>`_ is a website for hosting and sharing git repositories.                                                    |
     +------------+--------------------+-------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
     | GitLab     | ``gl``             | ``<url-escaped-namespace>/<unresolved_ref>``                | `GitLab <https://about.gitlab.com/>`_ offers hosted as well as self-hosted git repositories.                                              |
-    |            |                    | (e.g. ``group%2Fproject%2Frepo/main``)                    |                                                                                                                                           |
+    |            |                    | (e.g. ``group%2Fproject%2Frepo/main``)                      |                                                                                                                                           |
     +------------+--------------------+-------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
     | Gist       | ``gist``           | ``<github-username>/<gist-id><commit-sha-or-tag>``          | `Gists <https://gist.github.com/>`_ are small collections of files stored on GitHub. They behave like lightweight repositories.           |
     +------------+--------------------+-------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+