Update README

Author: Tsingis

README.md

@@ -8,16 +8,10 @@ API based on [GoinGecko's public API.](https://www.coingecko.com/en/api/document
 2. Which date has the highest trading volume?
 3. What are the best days to buy and sell?
 
-Use API hosted on [Render](https://bitcoin-web-api.onrender.com) with built-in Swagger
-or with any suitable tool of your choice.
+API documentation
 
-Input date format: `yyyy-MM-dd`
-
-Endpoints:
-
--   /longestdownwardtrend
--   /highestradingvolume
--   /buyandsell
+-   Swagger [here](https://bitcoin-web-api.onrender.com/swagger)
+-   Scalar [here](https://bitcoin-web-api.onrender.com/scalar)
 
 Tools used: