Merge branch 'patch-3' into 'master'

Update README.md

See merge request !114

README.md

@@ -271,3 +271,9 @@ More details about order operations you could find with call ```sudo /opt/cellfr
 More details about cellframe node commands in call ```sudo /opt/cellframe-node/bin/cellframe-node-cli help```
 
 
+#### Remove cellframe-node
+
+In order to remove cellframe-node, use the following command
+```
+sudo apt-get remove cellframe-node
+```