Update README.rst (#89)

This commit updates the README.md file to include clear instructions and a code example on how to use unique namespaces for multiple, independent CircuitBreakers with Redis storage in Pybreaker. It highlights the necessity of assigning distinct namespaces to each CircuitBreaker instance to ensure independent state management in Redis.

README.rst

@@ -106,6 +106,20 @@ fail with:
         reset_timeout=60,
         state_storage=pybreaker.CircuitRedisStorage(pybreaker.STATE_CLOSED, get_redis_connection('default')))
 
+.. note::
+
+  If you require multiple, independent CircuitBreakers and wish to store their states in Redis, it is essential to assign a ``unique namespace`` for each 
+  CircuitBreaker instance. This can be achieved by specifying a distinct namespace parameter in the CircuitRedisStorage constructor. for example:
+
+.. code:: python
+
+    import pybreaker
+    from django_redis import get_redis_connection
+
+    db_breaker = pybreaker.CircuitBreaker(
+        fail_max=5,
+        reset_timeout=60,
+        state_storage=pybreaker.CircuitRedisStorage(pybreaker.STATE_CLOSED, get_redis_connection('default'),namespace='unique_namespace'))
 
 Event Listening
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