Update README.md

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README.md

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 |**Debug**|[![Build status](https://ci.appveyor.com/api/projects/status/8ypr7527dnao04yr?svg=true)](https://ci.appveyor.com/project/JamesSouth/imageprocessor)|
 |**Release**|[![Build status](https://ci.appveyor.com/api/projects/status/8ypr7527dnao04yr/branch/Master?svg=true)](https://ci.appveyor.com/project/JamesSouth/imageprocessor/branch/Master)|
-|**Coverage Report**|[![Coverage Status](https://coveralls.io/repos/JimBobSquarePants/ImageProcessor/badge.svg)](https://coveralls.io/r/JimBobSquarePants/ImageProcessor?branch=v2)|
+|**Coverage Report**|[![Coverage Status](https://coveralls.io/repos/JimBobSquarePants/ImageProcessor/badge.svg)](https://coveralls.io/r/JimBobSquarePants/ImageProcessor?branch=V2)|
 
 ### Latest Releases
 |Library           |Version           |Downloads         |