Typo in readme command write-config

[KimOlsson]

On readme page it says that you need to run this line in order to write to config file:
catt -d <name_of_chromecast> write_config
write-config (with a dash) is how it probably is supposed to be, at least it is so on my Windows 10 installation.

Thank you very much for writing this program! It's awesome 👍

[theychx]

You're right. Thank you for reporting this!

[theychx]

@KimOlsson This was actually not a typo, but rather caused by a change in behaviour in one of the libraries we use. So the name is back to write_config, as of 0.8.1 (just released).
Sorry for the confusion!