Update git-memo.content.md: remove :

Author: teyhouse

src/tools/git-memo/git-memo.content.md

@@ -37,19 +37,19 @@ git commit --amend --no-edit
 
 ## Branches
 
-Lists all local branches in your repository (use -a for local and remote branches):
+Lists all local branches in your repository (use -a for local and remote branches)
 
 ```shell
 git branch
 ```
 
-Switch to an existing branch:
+Switch to an existing branch
 
 ```shell
 git switch [branch name]
 ```
 
-Create a new branch:
+Create a new branch
 
 ```shell
 git checkout -b [branch name]