Merge pull request #142 from ImperialCollegeLondon/use_informative_link_phrases

Use more informative link text for git alias links

Author: dc2917

episodes/02-branching_merging.md

@@ -126,17 +126,16 @@ them and how to merge changes from different branches.
 
 ## A useful alias
 
-We will now define an *alias* in Git, to be able to nicely visualise branch
-structure in the terminal without having to remember a long Git command
-(more details about what aliases are can be found
-[here](https://linuxize.com/post/how-to-create-bash-aliases/) and the full <!-- markdown-link-check-disable-line -->
-docs on how to set them up in Git are
-[here](https://git-scm.com/book/en/v2/Git-Basics-Git-Aliases)):
+We will now define an [*alias* in Git](https://git-scm.com/book/en/v2/Git-Basics-Git-Aliases),
+to be able to nicely visualise branch structure in the terminal without having to
+remember a long Git command:
 
 ```bash
 git config --global alias.graph "log --all --graph --decorate --oneline"
 ```
 
+We can now abbreviate `log --all --graph --decorate --oneline` with the alias `graph`.
+
 ::::::::::::::::::::::::::::::::::::::::::::::::::
 
 ## Creating and Working with Branches