Fix typos in integrationtest.md documentation
Fix typos in integrationtest.md documentation

vanitasvitae/Smack,Flowdalic/Smack,igniterealtime/Smack,igniterealtime/Smack,annovanvliet/Smack,annovanvliet/Smack,vanitasvitae/Smack,vanitasvitae/smack-omemo,esl/Smack,esl/Smack,vanitasvitae/smack-omemo,andrey42/Smack,vanitasvitae/smack-omemo,Flowdalic/Smack,esl/Smack,annovanvliet/Smack,igniterealtime/Smack,Flowdalic/Smack,vanitasvitae/Smack,andrey42/Smack,andrey42/Smack