Twitter shield (eProsima#2453)

Signed-off-by: Eduardo Ponz <[email protected]>

README.md

@@ -1,16 +1,12 @@
 # eProsima Fast DDS
 
-<a href="https://twitter.com/intent/tweet?text=I+recommend+@EProsima+%23FastRTPS,+the+ most+complete+open+source+dds+middleware!&url=https%3A%2F%2Fgithub.com%2FeProsima%2FFast-RTPS&hashtags=github&original_referer=http%3A%2F%2Fgithub.com%2F&tw_p=tweetbutton" target="_blank">
-  <img align="right"; hspace="20" src="https://www.eprosima.com/images/icons/eProsima_tweet.png"
-       alt="tweet button" title="Recommend Fast RTPS on Twitter"></img>
-</a>
-
 [![FIWARE Robotics](https://nexus.lab.fiware.org/static/badges/chapters/robotics.svg)](https://www.fiware.org/developers/catalogue/)
 [![License](https://img.shields.io/github/license/eProsima/Fast-RTPS.svg)](https://opensource.org/licenses/Apache-2.0)
 [![Releases](https://img.shields.io/github/v/release/eProsima/Fast-RTPS?sort=semver)](https://github.com/eProsima/Fast-RTPS/releases)
 [![Issues](https://img.shields.io/github/issues/eProsima/Fast-RTPS.svg)](https://github.com/eProsima/Fast-RTPS/issues)
 [![Forks](https://img.shields.io/github/forks/eProsima/Fast-RTPS.svg)](https://github.com/eProsima/Fast-RTPS/network/members)
 [![Stars](https://img.shields.io/github/stars/eProsima/Fast-RTPS.svg)](https://github.com/eProsima/Fast-RTPS/stargazers)
+[![Twitter Follow](https://img.shields.io/twitter/follow/eprosima?style=social)](https://twitter.com/EProsima)
 <br/>
 [![Documentation badge](https://img.shields.io/readthedocs/eprosima-fast-rtps.svg)](https://eprosima-fast-rtps.readthedocs.io)
 ![Status](https://nexus.lab.fiware.org/static/badges/statuses/incubating.svg)
@@ -40,7 +36,7 @@ system input/output channel combination for each deployment.
 
 *eProsima Fast DDS* has been adopted by multiple organizations in many sectors including these important cases:
 
-* Robotics: ROS (Robotic Operating System) as their default middleware for ROS2 until and including the 
+* Robotics: ROS (Robotic Operating System) as their default middleware for ROS2 until and including the
   latest long term release Foxy Fitzroy.
 * EU R&D: FIWARE Incubated GE.