Add X (Twitter) to README, Fix Roadmap Hyperlink (hyperledger#6047)

* Add X to README, Fix Roadmap Hyperlink

Signed-off-by: David Cardenas <47157243+davidcardenasus@users.noreply.github.com>

* Update README

Signed-off-by: David Cardenas <47157243+davidcardenasus@users.noreply.github.com>

* Update README

Signed-off-by: David Cardenas <47157243+davidcardenasus@users.noreply.github.com>

---------

Signed-off-by: David Cardenas <47157243+davidcardenasus@users.noreply.github.com>
Co-authored-by: Sally MacFarlane <macfarla.github@gmail.com>

README.md

@@ -4,6 +4,7 @@
  [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/3174/badge)](https://bestpractices.coreinfrastructure.org/projects/3174)
  [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/hyperledger/besu/blob/main/LICENSE)
  [![Discord](https://img.shields.io/discord/905194001349627914?logo=Hyperledger&style=plastic)](https://discord.gg/hyperledger)
+ [![Twitter Follow](https://img.shields.io/twitter/follow/HyperledgerBesu)](https://twitter.com/HyperledgerBesu)
 
 [Download](https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/)
 
@@ -15,7 +16,7 @@ Besu is an Apache 2.0 licensed, MainNet compatible, Ethereum client written in J
 * [Besu Issues]
 * [Besu Wiki](https://wiki.hyperledger.org/display/BESU/Hyperledger+Besu)
 * [How to Contribute to Besu](https://wiki.hyperledger.org/display/BESU/How+to+Contribute)
-* [Besu Roadmap](https://wiki.hyperledger.org/display/BESU/Roadmap)
+* [Besu Roadmap & Planning](https://wiki.hyperledger.org/pages/viewpage.action?pageId=24781786)
 
 
 ## Issues