broken symlink

[benluelo]

https://github.com/zhiburt/tabled/blob/1ea8b9a53ad298d94dd1d86679fbb95824c7f5bd/tabled/examples/show/LICENSE points to a file that does not (or no longer) exists.

[zhiburt]

Thanks @benluelo for pointing it out.

I think maybe the example shall not have any LICENSE anyhow, right?
Just in case you want to you could delete the file and send a PR.