Typo: 'JavaDoc' -> 'Javadoc'.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1831647 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

README.md

@@ -55,7 +55,7 @@ Documentation
 -------------
 
 More information can be found on the [Apache Commons Codec homepage](https://commons.apache.org/proper/commons-codec).
-The [JavaDoc](https://commons.apache.org/proper/commons-codec/javadocs/api-release) can be browsed.
+The [Javadoc](https://commons.apache.org/proper/commons-codec/javadocs/api-release) can be browsed.
 Questions related to the usage of Apache Commons Codec should be posted to the [user mailing list][ml].
 
 Where can I get the latest release?