Typo "Postgres versions"→"PostgreSQL versions"

https://docs.microsoft.com/en-us/azure/postgresql/hyperscale/reference-versions
https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/postgresql/hyperscale/reference-versions.md
#PingMSFTDocs

Author: hyoshioka0128

articles/postgresql/hyperscale/reference-versions.md

@@ -51,8 +51,8 @@ PostgreSQL - Hyperscale (Citus).
 
 Depending on which version of PostgreSQL is running in a server group,
 different [versions of PostgreSQL extensions](reference-extensions.md)
-will be installed as well. In particular, Postgres versions 12-14 come with
-Citus 10, and earlier Postgres versions come with Citus 9.5.
+will be installed as well. In particular, PostgreSQL versions 12-14 come with
+Citus 10, and earlier PostgreSQL versions come with Citus 9.5.
 
 ## Next steps