Revert "Nam's index"

This reverts commit 59b6025ca0959f5fc5cfecf57d5f734d12a6c63c.
Merge branch 'master' of https://github.com/namonlyone/Win3GitMastering
Merge branch 'master' of https://github.com/namonlyone/Win3GitMastering
commit my internal changes
resolve conflict
resolve confict before pull