Add a pull request template
Add a pull request template

Signed-off-by: Aaron Raimist <5a7a6a189b47cd31d24667a751e4003cd04eced5@raim.ist>

vector-im/vector-ios,vector-im/vector-ios,vector-im/vector-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/riot-ios,vector-im/riot-ios