Fix a typo

java/README.md

@@ -47,7 +47,7 @@ If you are using Gradle, add the following to your `build.gradle` file's depende
 ```
     compile 'com.google.protobuf:protobuf-java:3.11.0'
 ```
-Again, be sure to check that the version number maches (or is newer than) the version number of protoc that you are using.
+Again, be sure to check that the version number matches (or is newer than) the version number of protoc that you are using.
 
 ### Use Java Protocol Buffers on Android