Minor updates to README file.
Minor updates to README file.

piwik/piwik-sdk-ios,artcom/piwik-sdk-ios,piwik/piwik-sdk-ios,piwik/piwik-sdk-ios,collectivehealth/piwik-sdk-ios,wedrive-core/piwik-sdk-ios,fireflyexperience/piwik-sdk-ios,gpalouk/piwik-sdk-ios