git-switch: improve wording of example descriptions (#3248)

pages/common/git-switch.md

@@ -12,14 +12,14 @@
 
 `git switch --create {{branch_name}}`
 
-- Create a new branch based on an existing commit:
+- Create a new branch based on an existing commit and switch to it:
 
 `git switch --create {{branch_name}} {{commit}}`
 
-- Update all submodules to match the target branch:
+- Switch to a branch and update all submodules to match:
 
 `git switch --recurse-submodules {{branch_name}}`
 
-- Automatically merge the current branch and any uncommitted changes into the new branch:
+- Switch to a branch and automatically merge the current branch and any uncommitted changes into it:
 
 `git switch --merge {{branch_name}}`