Add required package to the documentation

Author: machulav

README.md

@@ -161,6 +161,7 @@ Use the following steps to prepare your workflow for running on your EC2 self-ho
     sudo yum update -y && \
     sudo yum install docker -y && \
     sudo yum install git -y && \
+    sudo yum install libicu -y && \
     sudo systemctl enable docker
    ```