add pg-status to docs

Author: krylosov-aa

docs/master_replica/index.html

@@ -111,7 +111,7 @@ <h1 id="masterreplica-or-several-databases-at-the-same-time">Master/Replica or s
 runtime if the master or replica changes.
 You’ll need third-party functionality to determine which host is the master
 or the replica.</p>
-<p><a href="https://github.com/krylosov-aa/context-async-sqlalchemy/issues/2">Hopefully, I’ll be able to provide a ready-made solution for this soon.</a>.</p>
+<h4 id="change_host">I have an extremely lightweight microservice <a href="https://github.com/krylosov-aa/pg-status">pg-status</a> that fits perfectly here</h4>
 <p>The engine is not created immediately when <code>DBConnect</code> is initialized -
 it is created only on the first request.
 The library uses lazy initialization in many places.</p>

docs_sources/docs/master_replica.md

@@ -15,8 +15,7 @@ runtime if the master or replica changes.
 You’ll need third-party functionality to determine which host is the master
 or the replica.
 
-
-[Hopefully, I’ll be able to provide a ready-made solution for this soon.](https://github.com/krylosov-aa/context-async-sqlalchemy/issues/2).
+#### I have an extremely lightweight microservice [pg-status](https://github.com/krylosov-aa/pg-status) that fits perfectly here.
 
 The engine is not created immediately when `DBConnect` is initialized -
 it is created only on the first request.