Update README to pass twine inspection (#307)

Author: ArBridgeman

README.rst

@@ -165,7 +165,7 @@ to the following one:
 
    ALTER SESSION SET SCRIPT_LANGUAGES='<LANGUAGE_ALIAS>=localzmq+protobuf:///<bucketfs-name>/<bucket-name>/<path-in-bucket>/<container-name>?lang=<language>#buckets/<bucketfs-name>/<bucket-name>/<path-in-bucket>/<container-name>/exaudf/exaudfclient[_py3]';
 
-**Please, refer to the** :doc:`User Guide <user_guide/user_guide>`.
+**Please, refer to the** `User Guide <https://exasol.github.io/script-languages-container-tool/main/user_guide/user_guide.html>`__.
 **for more detailed information, how to use exalsct.**
 
 Features

doc/changes/changes_3.4.0.md

@@ -6,9 +6,13 @@
 
 ## Refactorings
 
- - #301: Update PTB and workflows and activate generation of GH pages
+ - #301: Updated PTB and workflows and activate generation of GH pages
  - #305: Updated exasol-bucketfs to 2.0.0
 
 ## Security
 
- - #303: Update dependencies on top of 3.3.0, including exasol-toolbox to 1.6.0
+ - #303: Updated dependencies on top of 3.3.0, including exasol-toolbox to 1.6.0
+
+## Bugfixes
+
+ - Changed referenced link to external link in README due to issues with PyPi & GitHub rendering