Fixing typo + method name in messaging documentation
Fixing typo + method name in messaging documentation

Flowdalic/Smack,vanitasvitae/Smack,annovanvliet/Smack,igniterealtime/Smack,Flowdalic/Smack,vanitasvitae/smack-omemo,esl/Smack,annovanvliet/Smack,Flowdalic/Smack,vanitasvitae/smack-omemo,igniterealtime/Smack,vanitasvitae/smack-omemo,igniterealtime/Smack,vanitasvitae/Smack,esl/Smack,vanitasvitae/Smack,annovanvliet/Smack,esl/Smack