message: Update docs/get-ckb.md
diff: @@ -11,7 +11,7 @@ branch.
  The Linux builds require `libssl` dynamic libraries to run. In Ubuntu, it can be installed by:
  ```bash
  -sudo apt-get install libssl1.0.0 -y
  +sudo apt-get install -y libssl1.0.0
  ```
  We also provides docker images, see [how to run CKB with docker](run-ckb-with-docker.md).
  