fix some github refs failing to parse due to incorrectly case-sensitive regex
fix some github refs failing to parse due to incorrectly case-sensitive regex

eyeye/yotta,stevenewey/yotta,stevenewey/yotta,theotherjimmy/yotta,iriark01/yotta,ARMmbed/yotta,iriark01/yotta,eyeye/yotta,ntoll/yotta,autopulated/yotta,autopulated/yotta,theotherjimmy/yotta,BlackstoneEngineering/yotta,ARMmbed/yotta,ntoll/yotta,BlackstoneEngineering/yotta