fixed grammar/typos in collectd section of docs
fixed grammar/typos in collectd section of docs

jonseymour/influxdb,mvadu/influxdb,linearb/influxdb,jipperinbham/influxdb,pkittenis/influxdb,jipperinbham/influxdb,otoolep/influxdb,n1tr0g/influxdb,influxdb/influxdb,vladlopes/influxdb,linearb/influxdb,mvadu/influxdb,mnuessler/influxdb,otoolep/influxdb,benbjohnson/influxdb,arussellsaw/influxdb,li-ang/influxdb,mvadu/influxdb,linearb/influxdb,benbjohnson/influxdb,nooproblem/influxdb,influxdata/influxdb,linearb/influxdb,mnuessler/influxdb,jonseymour/influxdb,vladlopes/influxdb,runner-mei/influxdb,mark-rushakoff/influxdb,chenziliang/influxdb,archsaber/influxdb,pkittenis/influxdb,joaopedrotaveira/influxdb,otoolep/influxdb,mnuessler/influxdb,nooproblem/influxdb,pkittenis/influxdb,jipperinbham/influxdb,jonseymour/influxdb,nooproblem/influxdb,jgeiger/influxdb,influxdata/influxdb,nooproblem/influxdb,joaopedrotaveira/influxdb,arussellsaw/influxdb,daachi/influxdb,mnuessler/influxdb,mark-rushakoff/influxdb,chenziliang/influxdb,jgeiger/influxdb,arussellsaw/influxdb,li-ang/influxdb,jipperinbham/influxdb,joaopedrotaveira/influxdb,mark-rushakoff/influxdb,archsaber/influxdb,n1tr0g/influxdb,n1tr0g/influxdb,jgeiger/influxdb,arussellsaw/influxdb,influxdb/influxdb,linearb/influxdb,influxdb/influxdb,n1tr0g/influxdb,nooproblem/influxdb,runner-mei/influxdb,chenziliang/influxdb,jgeiger/influxdb,daachi/influxdb,runner-mei/influxdb,joaopedrotaveira/influxdb,arussellsaw/influxdb,n1tr0g/influxdb,pkittenis/influxdb,vladlopes/influxdb,daachi/influxdb,vladlopes/influxdb,benbjohnson/influxdb,influxdb/influxdb,runner-mei/influxdb,otoolep/influxdb,n1tr0g/influxdb,mnuessler/influxdb,pkittenis/influxdb,jipperinbham/influxdb,mark-rushakoff/influxdb,mvadu/influxdb,apigee/influxdb,apigee/influxdb,influxdb/influxdb,chenziliang/influxdb,pkittenis/influxdb,jonseymour/influxdb,jonseymour/influxdb,otoolep/influxdb,apigee/influxdb,influxdb/influxdb,daachi/influxdb,apigee/influxdb,jgeiger/influxdb,mvadu/influxdb,arussellsaw/influxdb,daachi/influxdb,archsaber/influxdb,mnuessler/influxdb,apigee/influxdb,joaopedrotaveira/influxdb,apigee/influxdb,jonseymour/influxdb,daachi/influxdb,jipperinbham/influxdb,otoolep/influxdb,benbjohnson/influxdb,mark-rushakoff/influxdb,archsaber/influxdb,jgeiger/influxdb,mark-rushakoff/influxdb,mvadu/influxdb