update username and password placeholders (#899)

(cherry picked from commit e955361)

Author: jordan-smith721

source/code-snippets/authentication/cr.js

@@ -1,8 +1,8 @@
 const { MongoClient } = require("mongodb");
 
 // Replace the following with values for your environment.
-const username = encodeURIComponent("<username>");
-const password = encodeURIComponent("<password>");
+const username = encodeURIComponent("<db_username>");
+const password = encodeURIComponent("<db_password>");
 const clusterUrl = "<MongoDB cluster url>";
 
 // Replace the following with your MongoDB deployment's connection string.

source/code-snippets/authentication/default.js

@@ -1,8 +1,8 @@
 const { MongoClient } = require("mongodb");
 
 // Replace the following with values for your environment.
-const username = encodeURIComponent("<username>");
-const password = encodeURIComponent("<password>");
+const username = encodeURIComponent("<db_username>");
+const password = encodeURIComponent("<db_password>");
 const clusterUrl = "<MongoDB cluster url>";
 
 const authMechanism = "DEFAULT";

source/code-snippets/authentication/sha1.js

@@ -1,8 +1,8 @@
 const { MongoClient } = require("mongodb");
 
 // Replace the following with values for your environment.
-const username = encodeURIComponent("<username>");
-const password = encodeURIComponent("<password>");
+const username = encodeURIComponent("<db_username>");
+const password = encodeURIComponent("<db_password>");
 const clusterUrl = "<MongoDB cluster url>";
 
 const authMechanism = "SCRAM-SHA-1";

source/code-snippets/authentication/sha256.js

@@ -1,8 +1,8 @@
 const { MongoClient } = require("mongodb");
 
 // Replace the following with values for your environment.
-const username = encodeURIComponent("<username>");
-const password = encodeURIComponent("<password>");
+const username = encodeURIComponent("<db_username>");
+const password = encodeURIComponent("<db_password>");
 const clusterUrl = "<MongoDB cluster url>";
 
 const authMechanism = "SCRAM-SHA-256";

source/connection-troubleshooting.txt

@@ -216,7 +216,7 @@ database:
    :copyable: true
 
    const { MongoClient } = require("mongodb");
-   const uri = "mongodb://<username>:<password>@<hostname>:<port>/?authSource=users";
+   const uri = "mongodb://<db_username>:<db_password>@<hostname>:<port>/?authSource=users";
    const client = new MongoClient(uri);
 
 You can check if this is the issue by attempting to connect to a MongoDB

source/whats-new.txt

@@ -821,9 +821,9 @@ Authentication
 
      .. code-block:: js
 
-        new MongoClient("mongodb://username:password@<host><port>")
+        new MongoClient("mongodb://<db_username>:<db_password>@<host><port>")
         // or
-        new MongoClient(url, { auth: { username: "<>", password: "<>" } })
+        new MongoClient(url, { auth: { username: "<db_username>", password: "<db_password>" } })
 
 ``GridStore`` Removal
 `````````````````````