DOCSP-17190 connecting to localhost (#122)

* added note about connecting to localhost

Author: kyuan-mongodb

source/fundamentals/connection.txt

@@ -96,6 +96,11 @@ connect to MongoDB.
 
 .. _connect-replica-set:
 
+Connect to ``localhost``
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. include:: /includes/localhost-connection.rst
+
 Connect to a Replica Set
 ------------------------
 

source/includes/localhost-connection.rst

@@ -0,0 +1,8 @@
+To connect to a ``mongod`` running locally, change the connection string
+to ``"mongodb://localhost:<port>"``, e.g. ``"mongodb://locahost:27017"``.
+
+Your ``mongod`` instance must be running to successfully connect to your
+database. For information on how to start your ``mongod`` instance,
+see the :manual:`Manage mongod Processes
+</tutorial/manage-mongodb-processes/#start-mongod-processes>` Server
+Manual Entry.

source/quick-start.txt

@@ -95,6 +95,11 @@ After completing this step, you should have a working application that uses
 the Java driver to connect to your MongoDB cluster, run a query on the
 sample data, and print out the result.
 
+Connect to ``localhost``
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. include:: /includes/localhost-connection.rst
+
 Working with POJOs (Optional)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~