ci(Dockerfile): update docker labels [skip ci]

Dockerfile

@@ -4,7 +4,11 @@ FROM buildpack-deps:${VARIANT}-curl
 
 # ARG VARIANT
 ARG SCHEME
-LABEL dev.containers.features="common"
+LABEL \
+  org.opencontainers.image.title="Devcontainer of TeXLive" \
+  org.opencontainers.image.authors="rnicrosoft-studio" \
+  org.opencontainers.image.source="https://github.com/rnicrosoft-studio/latex-docker/" \
+  org.opencontainers.image.licenses="MPL-2.0"
 ENV LANG C.UTF-8
 
 # install additional OS packages.

README.md

@@ -1,2 +1,39 @@
 # latex-docker
 🐳 Docker Image of TeXLive based on Ubuntu
+
+# Usage
+```sh
+docker pull ghcr.io/rnicrosoft-studio/latex:<TAG>
+```
+
+# Supported tags
+`<YEAR>-<SCHEME>-<VARIANT>`
+
+|  | Default |
+| -- | -- |
+| `<YEAR>` | latest / 2024 |
+| `<SCHEME>` | full |
+| `<VARIANT>` | jammy |
+
+
+* `main` `jammy`
+    * `latest` `latest-jammy`
+    * `2024` `2024-jammy`
+* `full` `full-jammy`
+    * `latest-full` `latest-full-jammy`
+    * `2024-full` `2024-full-jammy`
+* `medium` `medium-jammy`
+    * `latest-medium` `latest-medium-jammy`
+    * `2024-medium` `2024-medium-jammy` 
+* `small` `small-jammy`
+    * `latest-small` `latest-small-jammy`
+    * `2024-small` `2024-small-jammy`
+* `basic` `basic-jammy`
+    * `latest-basic` `latest-basic-jammy`
+    * `2024-basic` `2024-basic-jammy`
+* `minimal` `minimal-jammy`
+    * `latest-minimal` `latest-minimal-jammy`
+    * `2024-minimal` `2024-minimal-jammy`
+* `infraonly` `infraonly-jammy`
+    * `latest-infraonly` `latest-infraonly-jammy`
+    * `2024-infraonly` `2024-infraonly-jammy`