small grammar error fix

there was an extra word in BW RU Regice I have removed
BW2 Doubles Darkrai and Latias

BW2 Doubles Darkrai and Latias
added darkrai and latias onto bw2 doubles metagame

added darkrai and latias onto bw2 doubles metagame list
Merge branch '00455c01861dd5a2fe722ac73ab7a4c4'
small edits
Merge pull request #308 from smogon/11041de0f06c1ae18183627e6dd9cb41

small edits