removed documentation resources and added some lines of example code back in notes.

Author: Vishesh-Mistry

docs/source/en/model_doc/mbart.md

@@ -108,16 +108,11 @@ print(tokenizer.batch_decode(generated_tokens, skip_special_tokens=True))
 
     article_ar = "الأمين العام للأمم المتحدة يقول إنه لا يوجد حل عسكري في سوريا."
     tokenizer.src_lang = "ar_AR"
-    ```
-
-## Documentation resources
 
-- [Text classification task guide](../tasks/sequence_classification)
-- [Question answering task guide](../tasks/question_answering)
-- [Causal language modeling task guide](../tasks/language_modeling)
-- [Masked language modeling task guide](../tasks/masked_language_modeling)
-- [Translation task guide](../tasks/translation)
-- [Summarization task guide](../tasks/summarization)
+    encoded_ar = tokenizer(article_ar, return_tensors="pt")
+    generated_tokens = model.generate(**encoded_ar, forced_bos_token_id=tokenizer.lang_code_to_id["en_XX"])
+    tokenizer.batch_decode(generated_tokens, skip_special_tokens=True)
+    ```
 
 ## MBartConfig