fix: README

README.md

@@ -6,10 +6,16 @@
 git clone --recurse-submodules git@git.cryptic.systems:volker.raschek/vim.git ~/.vim
 ```
 
-## Update
+## Update Repositories
 ```bash
 cd ~/.vim
 git fetch origin
 git rebase origin/master
 git submodule update --init --recursive
 ```
+
+## Update You-Complete-Me
+```bash
+cd ~/.vim/bundle/YouCompleteMe
+./install.py --all
+```