update README

README.md

@@ -1,8 +1,16 @@
 # Clippit
 
 This project is a React-based PDF parser application that allows users 
-to upload a PDF, extract text from it, and ask questions based on the 
-extracted text using AI services. Users can choose between OpenAI's 
--3.5 and Cohere AI for generating answers.
+to upload a PDF and ask questions based on the extracted text using AI 
+services. 
 
+## Features
+- Upload a PDF file and extract its text content.\
+- Choose between OpenAI and Cohere AI for generating responses.\
+- Ask questions based on the extracted text and receive answers formatted in GitHub-flavored markdown.
 
+
+Note: You will need to enter your own API key 
+to use the corresponding feature. 
+You can generate the OpenAI API key from OpenAI's platform 
+and the Cohere API key from Cohere's dashboard.