message: Mark building instructions as not up-to-date
diff: @@ -78,7 +78,7 @@ For Ubuntu 16.04 LTS through to 17.10 Open SSL 1.1 isn't available in the reposi
  make
  sudo make install
  -### Building
  +### Building (ATTENTION: Instructions are not update! For building Linux check the commands in the corresponding docker build files.)
  To fetch the source code and build the wallet run the following commands:
  