diff --git a/README.adoc b/README.adoc
index c19e8c8e..24689af0 100644
--- a/README.adoc
+++ b/README.adoc
@@ -73,8 +73,17 @@ We intend to maintain a linear history on the GitHub `main` branch.
 [[building]]
 == Building The Specifications and Reference Pages
 
-If you have installed all <<depends,required toolchain components>>, you
-should be able to build both HTML and PDF outputs for all specifications by:
+After cloning the repository you should install all of the <<depends,required toolchain components>>.
+The recommended way to do this is by using the Khronos provided Docker image
+`khronosgroup/docker-images:asciidoctor-spec` from DockerHub.
+The Dockerfile specifying this image can be found at
+https://github.com/KhronosGroup/DockerContainers[KhronosGroup/DockerContainers]
+if you need to build a modified or layered image. Due to local and CI caching problems when this image
+is updated on dockerhub, the OpenCL-Docs CI uses the SHA256 of the latest image update,
+rather than the image name.
+
+Once you have installed all the dependencies you should be able to build both HTML
+and PDF outputs for all specifications by:
 
     $ make