Add download link - release 21.1.1 (#1991)

Signed-off-by: Karim TAAM <karim.t2am@gmail.com>

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+## 21.1.2
+
+### Additions and Improvements
+
+### Bug Fixes
+
+### Early Access Features
+
+#### Previously identified known issues
+
+- [Fast sync when running Besu on cloud providers](KNOWN_ISSUES.md#fast-sync-when-running-besu-on-cloud-providers)
+- [Privacy users with private transactions created using v1.3.4 or earlier](KNOWN_ISSUES.md#privacy-users-with-private-transactions-created-using-v134-or-earlier)
+
+
 ## 21.1.1
 
 ### Berlin Network Upgrade
@@ -29,6 +43,11 @@ This release contains the activation blocks for Berlin across all supported test
 - [Fast sync when running Besu on cloud providers](KNOWN_ISSUES.md#fast-sync-when-running-besu-on-cloud-providers)
 - [Privacy users with private transactions created using v1.3.4 or earlier](KNOWN_ISSUES.md#privacy-users-with-private-transactions-created-using-v134-or-earlier)
 
+### Download link
+https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/21.1.1/besu-21.1.1.zip
+sha256: `c22a80a54e9fed864734b9fbd69a0a46840fd27ca5211648a3eaf8a955417218 `
+
+
 ## 21.1.0
 
 **Important note: this release contains an outdated version of the Berlin network upgrade, which was changed on March 5, 2021 ([link](https://github.com/ethereum/pm/issues/263#issuecomment-791473406)). If you are using Besu on public Ethereum networks, you must upgrade to 21.1.1.**