Brno: Add Branching to yesterday's lesson

Author: encukou

runs/2018/pyladies-brno-podzim/info.yml

@@ -78,6 +78,7 @@ plan:
   date: 2018-10-17
   materials:
   - lesson: git/basics
+  - lesson: git/branching
   - lesson: git/ignoring
   - title: Gitový tahák
     url: https://pyvec.github.io/cheatsheets/basic-git/basic-git-cs.pdf