Update Standards To Follow.md

Add Git Branching Model
Update Standards To Follow.md

Add Git Branch Model Image
Update Standards To Follow.md

- Add branching standards mentioned by Mr.Adeel Nawaz
Updated Standards Readme File

Some of the points were out of context and needed some changes. This commit takes care of them.

##Changes:
- Rearranged the points in proper order.
- Elaborated some of the points.
- Fixed bullet/paragraph level.
Merge branch 'master' of https://github.com/RazaChohan/ReadytoServe-POS into development