add travis to the readme
add travis to the readme

Yelp/TMCache,klevison/PINCache,Pingco/PINCache,wonderkiln/TMCache,gshaviv/TMCache,normalcoder/PINCache,msdgwzhy6/TMCache,rewcraig/PINCache,jaredsinclair/PINCache,pinterest/PINCache,Quotation/TMCache,nguyehuuphuc08/TMCache,yimouleng/TMCache,Suninus/TMCache,ericzhou2008/TMCache,libiao88/TMCache,XZwalk/TMCache,jaredsinclair/PINCache,Guicai-Li/TMCache,rewcraig/PINCache,normalcoder/PINCache,nguyehuuphuc08/PINCache,TimorCan/PINCache,ramoslin02/TMCache,klevison/PINCache,xhacker/PINCache,libiao88/TMCache,quanquan1986/TMCache,normalcoder/PINCache,nguyehuuphuc08/PINCache,prrane/TMCache,gshaviv/TMCache,Suninus/TMCache,TimorCan/PINCache,nguyehuuphuc08/TMCache,ericzhou2008/TMCache,pinterest/PINCache,xhacker/PINCache,prrane/TMCache,loconsolutions/PINCache,Pingco/PINCache,pinterest/PINCache,ondev/TMCache,ramoslin02/TMCache,lydonchandra/PINCache,0x73/TMCache,TimorCan/PINCache,XZwalk/TMCache,msdgwzhy6/TMCache,Quotation/TMCache,lydonchandra/PINCache,ondev/TMCache,Pingco/PINCache,xhacker/PINCache,quanquan1986/TMCache,tumblr/TMCache,paulkite/TMCache,rewcraig/PINCache,yimouleng/TMCache,0x73/TMCache,tumblr/TMCache,Guicai-Li/TMCache,loconsolutions/PINCache,loconsolutions/PINCache,nguyehuuphuc08/PINCache,paulkite/TMCache,jaredsinclair/PINCache,lydonchandra/PINCache,pinterest/PINCache,wonderkiln/TMCache,klevison/PINCache,Yelp/TMCache