Update Docker Hub README: dockercmd.sh not found

[Rafael de Paula Herrera]

In https://hub.docker.com/r/blang/latex/ we can see that in README it suggests us to download dockercmd.sh, which has been replaced by latexdockercmd.sh:

The following statement is not working anymore:

wget https://raw.githubusercontent.com/blang/latex-docker/master/dockercmd.sh
--2018-04-08 00:47:14--  https://raw.githubusercontent.com/blang/latex-docker/master/dockercmd.sh
Resolving raw.githubusercontent.com... 151.101.92.133
Connecting to raw.githubusercontent.com|151.101.92.133|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-04-08 00:47:14 ERROR 404: Not Found.

So please replace according to the most recent README version, which can be found in this repository.

[Benedikt Lang]

Thanks! I fixed it