DOCSP-48719: Update non-Mongo credential placeholders (#240)

(cherry picked from commit fc4211c)

Author: mcmorisi

source/security.txt

@@ -446,12 +446,12 @@ Windows
             .. code-block:: python
 
                client = pymongo.MongoClient("mongodb://<hostname>:<port>",
-                                            username="<db_username>",
-                                            authMechanism="GSSAPI",
-                                            password="<db_password>",
-                                            authMechanismProperties="SERVICE_NAME:<authentication service name>,
-                                                CANONICALIZE_HOST_NAME:true,
-                                                SERVICE_REALM:<service realm>")
+                                       username="<username>",
+                                       authMechanism="GSSAPI",
+                                       password="<password>",
+                                       authMechanismProperties="SERVICE_NAME:<authentication service name>,
+                                           CANONICALIZE_HOST_NAME:true,
+                                           SERVICE_REALM:<service realm>")
 
          .. tab:: Connection String
             :tabid: connectionstring
@@ -485,8 +485,8 @@ PLAIN SASL
       .. code-block:: python
 
          client = pymongo.MongoClient("mongodb://<hostname>:<port>",
-                                      username="<db_username>",
-                                      password="<db_password>",
+                                      username="<username>",
+                                      password="<password>",
                                       authMechanism="PLAIN",
                                       tls=True)
 
@@ -495,11 +495,35 @@ PLAIN SASL
 
       .. code-block:: python
 
-         uri = ("mongodb://<db_username>:<db_password>@<hostname>:<port>/?"
+         uri = ("mongodb://<username>:<password>@<hostname>:<port>/?"
                 "&authMechanism=PLAIN"
                 "&tls=true")
          client = pymongo.MongoClient(uri)
 
+<<<<<<< HEAD
+=======
+   .. tab:: MongoClient (Asynchronous)
+      :tabid: mongoclient-async
+
+      .. code-block:: python
+
+         client = pymongo.AsyncMongoClient("mongodb://<hostname>:<port>",
+                                           username="<username>",
+                                           password="<password>",
+                                           authMechanism="PLAIN",
+                                           tls=True)
+   
+   .. tab:: Connection String (Asynchronous)
+      :tabid: connectionstring-async
+
+      .. code-block:: python
+
+         uri = ("mongodb://<username>:<password>@<hostname>:<port>/?"
+                "&authMechanism=PLAIN"
+                "&tls=true")
+         client = pymongo.AsyncMongoClient(uri)
+
+>>>>>>> fc4211c (DOCSP-48719: Update non-Mongo credential placeholders (#240))
 To learn more about authenticating with PLAIN SASL, see
 :ref:`pymongo-sasl` in the Enterprise Authentication guide.