Update readme with downloads badges.

Author: jyapayne

README.md

@@ -1,3 +1,7 @@
+[![Github Releases (by Release)](https://img.shields.io/github/downloads/jyapayne/Web2Executable/v0.4.11b/total.svg?maxAge=2592000)]()
+
+[![Github All Releases](https://img.shields.io/github/downloads/jyapayne/Web2Executable/total.svg?maxAge=2592000)]()
+
 Web2Executable
 ==============