Added Android packaging options to deployment doc

Author: kamathln

source/deployment.rst

@@ -46,6 +46,7 @@ OS Packaging & Installers
   - Building rpm/debs for projects
   - Building rpms/debs for whole virtualenvs
   - Building Mac OS X installers for Python projects
+  - Building Android APKs with Kivy+P4A or P4A & Buildozer
 
 Windows
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