chore: update comments

Author: waitingsong

files/postgres/pg-primary-host

@@ -1,9 +1,9 @@
 #!/bin/bash
 set -uo pipefail
 #==============================================================#
-# File      :   pg-member
-# Desc      :   retrieve patroni member name from patroni REST API
-# Path      :   /pg/bin/pg-member
+# File      :   pg--primary-host
+# Desc      :   retrieve patroni primary member host from patroni REST API
+# Path      :   /pg/bin/pg-primary-host
 # Depend    :   patroni
 # License   :   AGPLv3 @ https://pigsty.io/docs/about/license
 # Author    :   waiting

files/postgres/pg-primary-member

@@ -1,9 +1,9 @@
 #!/bin/bash
 set -uo pipefail
 #==============================================================#
-# File      :   pg-member
-# Desc      :   retrieve patroni member name from patroni REST API
-# Path      :   /pg/bin/pg-member
+# File      :   pg-primary-member
+# Desc      :   retrieve patroni primary member name from patroni REST API
+# Path      :   /pg/bin/pg-primary-member
 # Depend    :   patroni
 # License   :   AGPLv3 @ https://pigsty.io/docs/about/license
 # Author    :   waiting