Added pod instructions to README
Added pod instructions to README

aaronsakowski/BSImagePicker,machelix/BSImagePicker,felipecarreramo/BSImagePicker,jblorenzo/BSImagePicker,drahot/BSImagePicker,nickfalk/BSImagePicker,whatme/BSImagePicker,drahot/BSImagePicker,iOSCowboy/BSImagePicker,samritchie/BSImagePicker,iOSCowboy/BSImagePicker,sunzeboy/BSImagePicker,fireflyexperience/BSImagePicker,lcddhr/BSImagePicker,mikaoj/BSImagePicker,jblorenzo/BSImagePicker,jblorenzo/BSImagePicker,sunzeboy/BSImagePicker,fireflyexperience/BSImagePicker,aaronsakowski/BSImagePicker,aaronsakowski/BSImagePicker,whatme/BSImagePicker,bara86/BSImagePicker,whatme/BSImagePicker,felipecarreramo/BSImagePicker,aaronsakowski/BSImagePicker,lcddhr/BSImagePicker,nickfalk/BSImagePicker,samritchie/BSImagePicker,machelix/BSImagePicker,felipecarreramo/BSImagePicker,nickfalk/BSImagePicker,lcddhr/BSImagePicker,machelix/BSImagePicker,sunzeboy/BSImagePicker,bara86/BSImagePicker,bara86/BSImagePicker,mikaoj/BSImagePicker,iOSCowboy/BSImagePicker,lcddhr/BSImagePicker,samritchie/BSImagePicker