update README.md

README.md

@@ -13,25 +13,37 @@ You need at least to open a port for communication (image delivery and
 optionally communication via REST API and admin UI) and a folder where you
 keep your media files.
 
+### Helm charts
+
+For the purpose of running Cantaloupe container inside the Kubernetes cluster
+used for Memobase, there are some Helm charts available in the `helm-charts/`
+directory. If you want to deploy a container to Kubernetes in another context,
+these charts can probably be used as a starting point for your own setup.
+
 ## Version management
 
-This repository will eventually comprise Dockerfiles for different
-master versions of
-the application. In order to build an image out of a specific version, use the
-respective branch (e.g. `4.x`). The Docker image tags correspond to the
-branch names / version numbers, so in order to use the 4.x-version of the
-application, pull the image with tag `4.x`. The `latest` tag is identical to
-the last development version, which means reflecting the `develop` branch of
-the Cantaloupe [repository](https://github.com/cantaloupe-project/cantaloupe/)
-as well as of this repository. This latest version in insofar special because
-the Docker image is directly built from the sources while all other releases
-use the already compiled code (see
-[releases](https://github.com/cantaloupe-project/cantaloupe/) section of the
-Cantaloupe repository for more information).
-
-Additionally all versions come in a range of "flavors" which represent
-different combinations of processors (additional programs / libraries used for
-image processing). Available processors are `ffmpeg` (for video), `kakadu` and
+This repository offers Docker images for different master versions of
+the Cantaloupe. Additionally, all versions come in a range of "flavors" which
+represent some combinations of processors. For a comprehensive list see the
+[container
+registry](https://gitlab.switch.ch/memoriav/memobase-2020/services/cantaloupe-docker/container_registry/261).
+
+### Cantaloupe versions
+
+In order to build an image out of a specific version, use the
+respective branch. At the moment, there are branches for the two latest major
+versions of Cantaloupe: `4.x` and `5.x`. This naming convention is the same as
+used for the image tags. The `latest` image tag points to the branch with the
+latest stable major version of Cantaloupe, that means as of today to `5.x`.
+Duly updated, the branches use the latest minor versions of the respective
+major version of Cantaloupe:
+
+- `4.x` -> `4.1.9`
+- `5.x.` -> `5.0.3`
+
+### Processor versions
+
+Available processors are `ffmpeg` (for video), `kakadu` and
 `openjpeg` for JPEG2000 (the former proprietary, the latter free software) and
 `graphicsmagick`. If you need another combination or replace `graphicsmagick`
 with `imagemagick` see below.