fix: jsp: fix docs on running jetty from the command line (#505)

#46

Author: srl295

docs/unicodejsps/index.md

@@ -27,7 +27,7 @@ If you already have `UnicodeJsps` in eclipse, it might be better to remove it fr
 ### Command Line
 
 ```shell
-mvn org.eclipse.jetty:jetty-maven-plugin:run
+mvn -DCLDR_DIR=/path/to/cldr -DUNICODETOOLS_REPO_DIR=/path/to/unicodetools org.eclipse.jetty:jetty-maven-plugin:run
 ```
 
 If port 8080 is in use, another port can be specified with `-Djetty.port=⟨port number⟩`.