Refs #21228: Apply rev suggestions

Signed-off-by: JesusPoderoso <jesuspoderoso@eprosima.com>

Author: JesusPoderoso

README.md

@@ -7,6 +7,8 @@
 [![Issues](https://img.shields.io/github/issues/eProsima/Fast-DDS-python.svg)](https://github.com/eProsima/Fast-DDS-python/issues)
 [![Forks](https://img.shields.io/github/forks/eProsima/Fast-DDS-python.svg)](https://github.com/eProsima/Fast-DDS-python/network/members)
 [![Stars](https://img.shields.io/github/stars/eProsima/Fast-DDS-python.svg)](https://github.com/eProsima/Fast-DDS-python/stargazers)
+[![Fast DDS Python Ubuntu CI (nightly)](https://github.com/eProsima/Fast-DDS-Python/actions/workflows/nightly-ubuntu-ci.yml/badge.svg)](https://github.com/eProsima/Fast-DDS-Python/actions/workflows/nightly-ubuntu-ci.yml)
+
 
 <!-- TODO(eduponz): Remove this before releasing v3.0.0 -->
 > [!WARNING]

RELEASE_SUPPORT.md

@@ -1,6 +1,5 @@
 # Release support
 
-
 Please, refer to the [main branch](https://github.com/eProsima/Fast-DDS-Python/blob/master/RELEASE_SUPPORT.md) for the latest version of this document.
 
 *eProsima Fast DDS Python* maintains several releases with different support cycles.