Update README.adoc

Author: jvmlet

README.adoc

@@ -45,7 +45,7 @@ dependencies {
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 If you are using Spring Boot Dependency Management plugin, it might pull not the same version as the version this started was compiled against, causing binary incompatibility issue. +
-In  this case you'll need to forcibly and implicitly set the  `grpc` version to use (see link:ReleaseNotes.adoc[version matrix here^] ):
+In  this case you'll need to forcibly and explicitly set the  `grpc` version to use (see link:ReleaseNotes.adoc[version matrix here^] ):
 
 [source,groovy]
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