Created model card for my summarization model (#5838)

* Created model card for my summarization model

* Update model_cards/yuvraj/summarizer-cnndm/README.md
Co-authored-by: Julien Chaumond <chaumond@gmail.com>

model_cards/yuvraj/summarizer-cnndm/README.md

+---
+language: "en"
+tags:
+- summarization
+---
+​
+# Summarization
+​
+## Model description
+​
+BartForConditionalGeneration model fine tuned for summarization on 10000 samples from the cnn-dailymail dataset
+​
+## How to use
+​
+PyTorch model available
+​
+```python
+from transformers import AutoTokenizer, AutoModelWithLMHead, pipeline
+​
+tokenizer = AutoTokenizer.from_pretrained("yuvraj/summarizer-cnndm") 
+AutoModelWithLMHead.from_pretrained("yuvraj/summarizer-cnndm")
+​
+summarizer = pipeline('summarization', model=model, tokenizer=tokenizer)
+summarizer("<Text to be summarized>")
+​
+## Limitations and bias
+Trained on a small dataset