docs: refresh installation instructions and general cleanup

Change-Id: Ibfe945887e5cad979c1f9a78fd5a3062bb20a8b5
diff --git a/.jenkins.d/README.md b/.jenkins.d/README.md
index aeb94b0..7c78349 100644
--- a/.jenkins.d/README.md
+++ b/.jenkins.d/README.md
@@ -15,11 +15,11 @@
   * `[DISTRO_TYPE]`: `Ubuntu`
   * `[DISTRO_VERSION]`: `Ubuntu-16.04`, `Ubuntu-18.04`
 
-  Possible values for OS X / macOS:
+  Possible values for macOS:
 
   * `[OS_TYPE]`: `OSX`
   * `[DISTRO_TYPE]`: `OSX` (can be absent)
-  * `[DISTRO_VERSION]`: `OSX-10.11`, `OSX-10.12`, `OSX-10.13`
+  * `[DISTRO_VERSION]`: `OSX-10.12`, `OSX-10.13`, `OSX-10.14`
 
 - `JOB_NAME`: optional variable to define type of the job.  Depending on the defined job type,
   the build scripts can perform different tasks.