docs: redis

Signed-off-by: Ameya Shenoy <shenoy.ameya@gmail.com>

README.md

@@ -81,6 +81,22 @@ docker-compose exec backend python manage.py migrate
 
 Similarly all django commands can be run this way.
 
+## Endpoints
+
+There are 5 available endpoints:
+
+1. Empty Response Endpoint - to intentionally get an empty response from the server
+2. Directly from BSE - fetchs the data directly from the BSE website
+3. Postgres Endpoint - fetches the data from Postgres
+4. Redis Cache and Redis Cache v2 - both fetch data from redis, however there is
+   a slight differece in the way they store data.
+   - In the 1st case a LIST is stored maintainig the list of stocks for a given
+     day, and a HASHMAP for every stock is stored
+   - In the v2 endpoint, the entire JSON response for a day is stringified and
+     stored
+   The reason for implemnting two different endpoints, was to just check the
+   response times.
+
 
 ## Deploy