docs: fix typos in request queue limits description (#994)

Author: jirispilka

sources/platform/storage/request_queue.md

@@ -528,7 +528,7 @@ Check out the [Storage overview](/platform/storage#sharing-storages-between-runs
 
 * While multiple Actor or task runs can _add new requests_ to a queue concurrently, only one run can _process a queue_ at any one time.
 
-* The maximum legnth for request queue nams is 63 characters.
+* The maximum length for request queue name is 63 characters.
 
 ### Rate limiting {#rate-limiting}