doc: mvc annotation typos

Author: jknack

jooby/src/main/java/io/jooby/annotations/Body.java

@@ -17,7 +17,7 @@
  *   @Path("/r")
  *   class Resources {
  *
- *     @Post
+ *     @POST
  *     public void method(@Body MyBean) {
  *     }
  *   }

jooby/src/main/java/io/jooby/annotations/Dispatch.java

@@ -18,7 +18,7 @@
  *   class Resources {
  *
  *     @Dispatch
- *     @Get
+ *     @GET
  *     public ... dispatch() {
  *       // do blocking calls
  *     }

jooby/src/main/java/io/jooby/annotations/Path.java

@@ -17,8 +17,7 @@
  *   @Path("/r")
  *   class Resources {
  *
- *     @Path("/sub")
- *     @Get
+ *     @GET("/sub")
  *     public void method() {
  *     }
  *   }