Update visualisation demo

resources/visualize-git.md

@@ -1,32 +1,50 @@
 # Visualize git
 
+https://johanneslerch.github.io/visualizing-git/
+
 ## commands
 
 pres()
 
 ### Adding commits
-git commit -m "message 1" <br/>
-git commit -m "message 2" <br/>
-git commit -m "message 3" <br/>
+git commit
 
 ### Creating a branch
 
-git branch feature <br/>
-git commit -m "message 4" <br/>
-git checkout feature <br/>
-git commit -m "message 5" <br/>
-git commit -m "message 6" <br/>
-git commit -m "message 7" <br/>
-git commit -m "message 8" <br/>
+git branch feature
+git commit
+git checkout feature
+git commit
+git commit
+git commit
+git checkout master
+git branch feature2
+git commit
+git checkout feature2
+git commit
+git commit
+git commit
+git commit
+git checkout master
+
 
 ### Merging with master
-git checkout master <br/>
-git merge feature  <br/>
+git checkout master
+git merge feature
+git merge feature2
+
+
+### Delete unused branches
+git delete feature
+git delete feature2
 
 undo
 
 ### Rebase with master
-git checkout master <br/>
-git rebase feature <br/>
-git checkout feature <br/>
-git merge master <br/>
+git checkout master
+git rebase feature
+git checkout feature
+git merge master
+
+
+