Fix Formatting and Misspellings on Error Codes Doc

docs/features/errorcodes.rst

@@ -1,13 +1,19 @@
-Http Error Status Codes
+HTTP Error Status Codes
 =======================
 
-Ocelot will return HTTP status error codes based on internal logic in certain siturations:
-- 401 if the authentication middleware runs and the user is not authenticated.
-- 403 if the authorization middleware runs and the user is unauthenticated, claim value not authroised, scope not authorized, user doesnt have required claim or cannot find claim.
-- 503 if the downstream request times out.
-- 499 if the request is cancelled by the client.
-- 404 if unable to find a downstream route.
-- 502 if unable to connect to downstream service.
-- 500 if unable to complete the HTTP request downstream and the exception is not OperationCanceledException or HttpRequestException.
-- 404 if Ocelot is unable to map an internal error code to a HTTP status code.
+Ocelot will return HTTP status error codes based on internal logic in certain situations:
 
+Client error responses
+----------------------
+
+- **401** - if the authentication middleware runs and the user is not authenticated.
+- **403** - if the authorization middleware runs and the user is unauthenticated, claim value not authorized, scope not authorized, user doesn't have required claim, or cannot find claim.
+- **404** - if unable to find a downstream route, or Ocelot is unable to map an internal error code to a HTTP status code.
+- **499** - if the request is cancelled by the client.
+
+Server error responses
+----------------------
+
+- **500** - if unable to complete the HTTP request to downstream service, and the exception is not ``OperationCanceledException`` or ``HttpRequestException``.
+- **502** - if unable to connect to downstream service.
+- **503** - if the downstream request times out.