Add metadata labels

Dockerfile

@@ -1,7 +1,26 @@
 FROM python:3.9.18-alpine
+
+# Generic labels
+LABEL maintainer="Arian Mollik Wasi <arianmollik323@gmail.com>"
+LABEL version="0.2.2"
+LABEL description="My own custom 12ft.io replacement"
+LABEL url="https://github.com/wasi-master/13ft/"
+LABEL documentation="https://github.com/wasi-master/13ft/blob/main/README.md"
+
+# OCI compliant labels
+LABEL org.opencontainers.image.source="https://github.com/wasi-master/13ft"
+LABEL org.opencontainers.image.authors="Arian Mollik Wasi, Justin Paul, Alfredo Casanova"
+LABEL org.opencontainers.image.created="2023-10-31T22:53:00Z"
+LABEL org.opencontainers.image.version="0.2.2"
+LABEL org.opencontainers.image.url="https://github.com/wasi-master/13ft/"
+LABEL org.opencontainers.image.source="https://github.com/wasi-master/13ft/"
+LABEL org.opencontainers.image.description="My own custom 12ft.io replacement"
+LABEL org.opencontainers.image.documentation="https://github.com/wasi-master/13ft/blob/main/README.md"
+LABEL org.opencontainers.image.licenses=MIT
+
 COPY /app /app
 WORKDIR /app
-RUN pip install -r requirements.txt 
+RUN pip install -r requirements.txt
 EXPOSE 5000
-ENTRYPOINT [ "python" ] 
+ENTRYPOINT [ "python" ]
 CMD [ "portable.py" ]