Update all the comments and structure the document properly

Author: Prekshith-Microsoft

App/backend-api/Microsoft.GS.DPS.Host/appsettings.Development.json.sample

@@ -1,6 +1,7 @@
 {
   "ConnectionStrings": {
-    "AppConfig": "{{ appconfig-url }}"
+    // Replace with the Azure App Configuration endpoint URL
+    "AppConfig": "https://<app-config-name>.azconfig.io"
   },
   "KernelMemory": {
     "Service": {
@@ -117,47 +118,32 @@
         "BucketName": ""
       },
       "AzureAISearch": {
-        "Auth": "ApiKey",
-        "Endpoint": "",
-        "APIKey": "",
+        // Auth and Endpoint are configured in Azure App Configuration
         "UseHybridSearch": true
       },
       "AzureAIDocIntel": {
-        "Auth": "ApiKey",
-        "APIKey": "",
-        "Endpoint": ""
+        // Auth and Endpoint are configured in Azure App Configuration
       },
       "AzureBlobs": {
-        "Auth": "AzureIdentity",
-        "Account": "",
-        "Container": "",
-        "ConnectionString": "",
+        // Auth, Account, and Container are configured in Azure App Configuration
         "EndpointSuffix": "core.windows.net"
       },
       "AzureOpenAIEmbedding": {
-        "Auth": "ApiKey",
-        "Endpoint": "",
-        "APIKey": "",
-        "Deployment": "",
+        // Auth, Endpoint, and Deployment are configured in Azure App Configuration
         "MaxTokenTotal": 8191,
         "EmbeddingDimensions": null,
         "MaxEmbeddingBatchSize": 1,
         "MaxRetries": 10,
         "APIType": "EmbeddingGeneration"
       },
       "AzureOpenAIText": {
-        "Auth": "ApiKey",
-        "Endpoint": "",
-        "APIKey": "",
-        "Deployment": "",
+        // Auth, Endpoint, and Deployment are configured in Azure App Configuration
         "MaxTokenTotal": 128000,
         "APIType": "ChatCompletion",
         "MaxRetries": 10
       },
       "AzureQueues": {
-        "Auth": "AzureIdentity",
-        "Account": "",
-        "ConnectionString": "",
+        // Auth and Account are configured in Azure App Configuration
         "EndpointSuffix": "core.windows.net",
         "PollDelayMsecs": 100,
         "FetchBatchSize": 3,