Add instructions on Docker images

README.md

@@ -74,3 +74,28 @@ To disable logging, you can use the `log-errors` keyword argument:
 ```lisp
 (refresh :log-errors nil)
 ```
+
+## Docker images
+
+You can build your own Quickref images by modifying the provided Dockerfiles:
+
+`Dockerfile-buildenv` creates an image with all the dependencies needed to buid
+the various Quicklisp libraries inside.
+
+`Dockerfile` builds on top of the `buildenv` image and sets up a `quickbuilder`
+user, pulls the latest versions of Quickref and Declt, and finally launches
+Quickref.
+
+### Building the images
+
+To create the image with the build environment, run:
+
+```
+docker build -t my_image_name -f Dockerfile-buildenv .
+```
+
+To create the final Quickref image, run:
+
+```
+docker build -t my_image_name .
+```