Replace Gitg to gitg

replace/smartgit.md

@@ -27,9 +27,9 @@ Git Cola is free software and written in Python (v2 + v3).
   - **License**: [GPLv2](https://github.com/git-cola/git-cola/blob/main/COPYING)
 {% endinfobox %}
 
-## Gitg
+## gitg
 
-Gitg is a graphical user interface for git. It aims at being a small, fast and convenient tool to visualize the history of git repositories. Besides visualization, gitg also provides several utilities to manage your repository and commit your work.
+gitg is a graphical user interface for git. It aims at being a small, fast and convenient tool to visualize the history of git repositories. Besides visualization, gitg also provides several utilities to manage your repository and commit your work.
 
 {% infobox %}
   - **Website**: [GNOME Wiki](https://wiki.gnome.org/Apps/Gitg)