DOCSP-32718: runCommand comments (#762)

* DOCSP-32718: runCommand comments

* feedback

Author: norareidy

source/code-snippets/crud/runCommand.js

@@ -1,24 +1,31 @@
 import { MongoClient } from "mongodb";
 
-// Replace the uri string with your MongoDB deployment's connection string.
+// Replace the uri string with your MongoDB deployment's connection string
 const uri = "<connection string uri>";
 
+// Create a new client and connect to MongoDB
 const client = new MongoClient(uri);
 
 async function run() {
   try {
     // start-runcommand
+    // Connect to the "testDB" database
     const db = client.db("testDB");
+
+    // Run a cursor command to check metadata consistency within the database
     const cursor = await db.runCursorCommand({
         checkMetadataConsistency: 1,
     });
+    // Iterate through the cursor's results and print the contents
     for await (const doc of cursor) {
       console.log(doc);
     }
     // end-runcommand
   } finally {
+    // Close the MongoDB client connection
     await client.close();
   }
 }
+// Run the function and handle any errors
 run().catch(console.dir);