Adjusting topic map name

Author: skrthomas

_topic_maps/_topic_map.yml

@@ -1363,7 +1363,7 @@ Topics:
   Topics:
   - Name: Network Observability overview
     File: network-observability-overview
-  - Name: Installing Network Observability Operators
+  - Name: Installing the Network Observability Operator
     File: installing-operators
   - Name: Understanding Network Observability Operator
     File: understanding-network-observability-operator