message: Add libxkbcommon-dev to openSUSE dependencies
diff: @@ -125,7 +125,7 @@ a `zypper` command that should install all of them. If something is
  still found to be missing, please open an issue.
  ```sh
  -zypper install cmake freetype-devel fontconfig-devel libxcb-devel
  +zypper install cmake freetype-devel fontconfig-devel libxcb-devel libxkbcommon-dev
  ```
  #### Slackware
  