Improved the basic usage code sample in README.md with exception hand…

…ling

README.md

@@ -53,15 +53,26 @@ composer require blancks/fast-jsonpatch-php
 <?php require_once 'vendor/autoload.php';
 
 use blancks\JsonPatch\FastJsonPatch;
+use blancks\JsonPatch\FastJsonPatch\exceptions\FastJsonPatchException;
 
 $json = '{"name": "John", "age": 30}';
 $patch = '[
     {"op": "replace", "path": "/name", "value": "Jane"},
     {"op": "add", "path": "/email", "value": "[email protected]"}
 ]';
 
-echo FastJsonPatch::apply($json, $patch); 
-// Output: {"name": "Jane", "age": 30, "email": "[email protected]"}
+try {
+
+   echo FastJsonPatch::apply($json, $patch); 
+   // Output: {"name": "Jane", "age": 30, "email": "[email protected]"}
+
+} catch(FastJsonPatchException $e) {
+
+   // FastJsonPatchException comes with two additional methods to fetch context data:
+   // $e->getContextPointer() may return the context JSON pointer for given error
+   // $e->getContextDocument() may return the portion of the document relevant for the error 
+
+}
 ```
 
 ## Methods Overview