Fixed entrypoint executable and updated the readme

Dockerfile

@@ -101,6 +101,8 @@ RUN apk add --no-cache --virtual .build-deps-yarn curl gnupg tar \
 
 COPY entrypoint.sh /usr/local/bin/
 
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
 ENTRYPOINT ["entrypoint.sh"]
 
 CMD [ "node" ]

README.md

@@ -2,6 +2,16 @@
 - CUBETIQ Alpine OS Linux (3.13.3)
 - Nodejs 14 (14.16.0)
 
+# [Docker Hub](https://hub.docker.com/r/cubetiq/calpine-node)
+```shell
+docker push cubetiq/calpine-node:14
+```
+
+# Usage
+```shell
+docker run --rm -it cubetiq/calpine-node:14 /bin/sh
+```
+
 # Contributors
 - Sambo Chea <sombochea@cubetiqs.com>