Fix case

Author: jamesward

README.md

@@ -32,7 +32,7 @@ webJarVersionLocator.version("bootstrap"); // cache miss
 webJarVersionLocator.version("bootstrap"); // cache hit, avoiding looking up metadata in the classpath
 ```
 
-Custom Webjars
+Custom WebJars
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 By default, `webjars-locator-lite` only supports WebJars with the Maven group IDs of `org.webjars` and `org.webjars.npm`.