Split up one-off and alias code samples in pro-tips.md

Author: rmacklin

pro-tips.md

@@ -2,10 +2,12 @@
 
 #### One-off fanciness or a specific diff-so-fancy alias
 
-You can do also do a one-off or a specific `diff-so-fancy` alias:
+You can do also do a one-off:
 ```shell
 git diff --color | diff-so-fancy
-
+```
+or configure an alias to use `diff-so-fancy`:
+```shell
 git config --global alias.dsf '!f() { [ -z "$GIT_PREFIX" ] || cd "$GIT_PREFIX" '\
 '&& git diff --color "$@" | diff-so-fancy  | less --tabs=4 -RFXS; }; f'
 ```