Migrate to travis-ci.com

Author: jvmlet

README.adoc

@@ -9,7 +9,7 @@ endif::[]
 :toc:
 
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-image:https://travis-ci.org/LogNet/grpc-spring-boot-starter.svg?branch=master[Build Status,link=https://travis-ci.org/LogNet/grpc-spring-boot-starter]
+image:https://travis-ci.com/LogNet/grpc-spring-boot-starter.svg?branch=master["Build Status", link="https://travis-ci.com/LogNet/grpc-spring-boot-starter"]
 image:https://codecov.io/gh/LogNet/grpc-spring-boot-starter/branch/master/graph/badge.svg["Codecov",link="https://codecov.io/gh/LogNet/grpc-spring-boot-starter/branch/master"]
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