Update 2 files

- /external/contribute/supersede/img/img5.png
- /external/contribute/supersede/supersede.md

external/contribute/supersede/supersede.md

@@ -25,6 +25,25 @@ In some cases, it might be useful to move the Merge Request of a branch opened b
 
 4. If not done yet, configure the git mr command by following those [instructions](https://docs.gitlab.com/ee/user/project/merge_requests/reviews/#checkout-locally-by-adding-a-git-alias).
 
+   4.1 Open *Git Bash*
+
+    4.2 Type *vim ~/.gitconfig* - *Enter*
+
+    4.3 Type *i*
+
+    4.4 Type 
+
+    [alias]
+
+    mr = !sh -c 'git fetch $1 merge-requests/$2/head:mr-$1-$2 && git checkout mr-$1-$2' -
+
+    <div align="center">
+    <img src="img/img5.png" width="700">
+    </div>
+
+    4.5 Type *:wq*
+
+
 5. In the *Terminal window*, type *git remote add upstream [paste the SSH Key]*.
 You can copy the SSH key of the repository by clicking on Clone - copy on the repository page.