Add CI templates notes

README.md

@@ -4,6 +4,8 @@ The Xfce development tools are a collection of tools and macros for
 Xfce developers and people that want to build Xfce from Git In addition
 it contains the Xfce developer's handbook.
 
+## `xfce-build` containerized build environment
+
 This project also contains the code to build and deploy xfce-build to the 
 [xfce-build area on Docker Hub](https://hub.docker.com/repository/docker/xfce/xfce-build/). 
 This container is the build environment used by Xfce to build the various projects.
@@ -18,6 +20,12 @@ docker run --rm -u $(id -u ${USER}):$(id -g ${USER}) \
 The steps to build the container are encoded in the [`Dockerfile`](Dockerfile) in
 this repository, and is built via the build job in [`.gitlab-ci.yml`](.gitlab-ci.yml).
 
+## CI templates for Xfce
+
+The [CI folder](ci/) contains the `build_project.yml` template for building the various
+Xfce projects, as well as supporting scripts such as `build_libs.sh` which handles
+building any needed dependencies. This helps us avoid repeating the same build
+code in each project.
 
 ## How to report bugs?