show instead of explain

This should be clear with less words

r? @reddevilmidzy

Author: tshepang

src/git.md

@@ -385,8 +385,7 @@ the history becomes easier to work with.
 
 The easiest way to squash your commits in a PR on the `rust-lang/rust` repository is to use the `@bors squash` command in a comment on the PR.
 By default, [bors] combines all commit messages of the PR into the squashed commit message.
-To customize the commit message, use `@bors squash msg=<commit message>`.
-If you want to use multiple words in the commit message, wrap it in double quotes.
+To customize the commit message, use `@bors squash msg="<commit message>"`.
 For example, `@bors squash msg="Improve diagnostics for missing lifetime parameter"`.
 
 If you want to squash commits using local git operations, read on below.