Add missing @OVERRIDES from commit 08009be.

Author: Capstan

src/main/java/com/github/fge/jsonpatch/JsonPatch.java

@@ -138,6 +138,7 @@ public static JsonPatch fromJson(final JsonNode node)
      * @throws JsonPatchException failed to apply patch
      * @throws NullPointerException input is null
      */
+    @Override
     public JsonNode apply(final JsonNode node)
         throws JsonPatchException
     {

src/main/java/com/github/fge/jsonpatch/mergepatch/JsonMergePatch.java

@@ -100,6 +100,7 @@ public static JsonMergePatch fromJson(final JsonNode node)
      * {@link JsonPatch}
      * @throws NullPointerException value is null
      */
+    @Override
     public abstract JsonNode apply(final JsonNode input)
         throws JsonPatchException;
 }