Suggestions to improve the English translation

rendering.macro.activity.description=The Activity Macro provides information about recent activities done by the users inside the XWiki instance. It lists the create, edit and delete events for pages, comments, attachments and annotations. <-- Second sentence changed, important is that this macro lists the modifications and does not "listens" to them.
rendering.macro.activity.parameter.rss.description=Whether to show activity RSS link or not. <-- RSS is an acronym and should thus be all caps no matter what
rendering.macro.activity.parameter.rss.name=RSS <-- RSS is an acronym and should thus be all caps no matter what
rendering.macro.spaceindex.parameter.count.description=The maximum number of documents to display. By default, up to 100 documents will be listed. If all documents should be displayed, pass 0. <-- added "up to" to specify it might just as well be less.