Update 'README.md'

Added a short description and links to the package lists.

README.md

@@ -1,3 +1,38 @@
-# platform-system-packages
+# System Packages
 
-This repository stores the lists of system packages installed on the containers.
+This repository stores the lists of system packages installed on the containers.
+
+- `update.sh` script is used to update the package lists of all available containers.
+- `apt list --installed` command is used to create the package lists.
+- Selected keywords are stripped to enable easy comparison of the lists.
+
+## Platform Containers
+
+### Computing Unit (NVIDIA Jetson AGX)
+- [Base](base-jetson.txt)
+- [JupyterLab](jupyterlab-jetson.txt)
+
+### Big data computing unit (Dell PowerEdge R730xd)
+- [Base](base-mercury.txt)
+- [Core](core-mercury.txt)
+- [JupyterLab](jupyterlab-mercury.txt)
+
+## Service Containers
+- [Core](core.txt)
+- [Dask Scheduler](daskscheduler.txt)
+- [Dataverse](dataverse.txt)
+- [Dataverse > PostgreSQL](dataverse-postgresql.txt)
+- [Dataverse > Solr](dataverse-solr.txt)
+- [GeoNode](geonode.txt)
+- [GeoServer](geoserver.txt)
+- [Gitea](gitea.txt)
+- [Grafana](grafana.txt)
+- [Apache HTTP Server](httpd.txt)
+- [JupyterHub](jupyterhub.txt)
+- [JupyterHub Proxy](jupyterhub-proxy.txt)
+- [Keycloak](keycloak.txt)
+- [MariaDB](mariadb.txt)
+- [pgAdmin](pgadmin.txt)
+- [PostgreSQL](postgresql.txt)
+- [Prometheus](prometheus.txt)
+- [Spark Proxy](spark-proxy.txt)