Fix format issue in README.rst and update release date (#365)

Author: Nicoretti

CHANGELOG.rst

@@ -5,7 +5,7 @@ Unreleased
 
 .. _changelog-4.6.0:
 
-4.6.0 — 2023-07-17
+4.6.0 — 2023-07-18
 ==================
 
 🚀 Feature

README.rst

@@ -96,7 +96,7 @@ Talk to the EXASOL DB using SQLAlchemy
 
 **Websocket based Dialect:**
 
-For more details regarding the websocket support checkout `What is Websocket support? <wss>`_.
+For more details regarding the websocket support checkout the section: "What is Websocket support?"
 
 .. code-block:: python
 
@@ -158,7 +158,6 @@ Development & Testing
 `````````````````````
 See `developer guide`_
 
-.. _wss:
 What is Websocket support?
 ``````````````````````````
 In the context of SQLA and Exasol, Websocket support means that an SQLA dialect