Reference announcements in readme (#1007)

Hints to check the announcements page in the docs website for testnet related changes

Signed-off-by: Gil Danziger <gil@thirdhash.com>

Author: thothd

README.md

@@ -21,7 +21,9 @@ the [technical paper](https://unit-e.io/technical-design.pdf).
 
 :warning::warning::warning: WARNING: The client is under rapid development, is
 subject to breaking protocol changes (consensus, blockchain, p2p, RPC) and
-redoing from scratch of the alpha testnet :warning::warning::warning:
+redoing from scratch of the alpha testnet.
+Please check the [announcements page](https://docs.unit-e.io/announcements.html)
+for information regarding such changes. :warning::warning::warning:
 
 This repository hosts the implementation of the first Unit-e client: `unit-e`,
 also known as the "Feuerland" client. It's based on the [Bitcoin C++