docs: removed reference architecture section in the readme template (#910)

* Update README.md

removed reference architectures related comment

* Update .secrets.baseline

---------

Co-authored-by: Ayushmaan Singh <Ayushmaan.Singh1@ibm.com>

Author: aamadeuss

.secrets.baseline

@@ -3,7 +3,7 @@
     "files": "go.sum|^.secrets.baseline$",
     "lines": null
   },
-  "generated_at": "2024-11-22T17:36:38Z",
+  "generated_at": "2025-08-11T08:44:39Z",
   "plugins_used": [
     {
       "name": "AWSKeyDetector"
@@ -82,7 +82,7 @@
         "hashed_secret": "ff9ee043d85595eb255c05dfe32ece02a53efbb2",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 74,
+        "line_number": 65,
         "type": "Secret Keyword",
         "verified_result": null
       }

README.md

@@ -34,15 +34,6 @@ TODO: Replace this with a description of the modules in this repo.
 <!-- END OVERVIEW HOOK -->
 
 
-<!--
-If this repo contains any reference architectures, uncomment the heading below and link to them.
-(Usually in the `/reference-architectures` directory.)
-See "Reference architecture" in the public documentation at
-https://terraform-ibm-modules.github.io/documentation/#/implementation-guidelines?id=reference-architecture
--->
-<!-- ## Reference architectures -->
-
-
 <!-- Replace this heading with the name of the root level module (the repo name) -->
 ## terraform-ibm-module-template