Fix some typos (found by codespell)

[stweil]

Signed-off-by: Stefan Weil sw@weilnetz.de

[corrados]

Thanks. Do you want me to put your name in the Jamulus About dialog contributers list?

[stweil]

Thanks. Do you want me to put your name in the Jamulus About dialog contributers list?

I don't think that my small contribution is sufficient for that honour. :-)

Many thanks for providing Jamulus. I only recently was informed by a friend of this nice piece of software, and I am really happy how good it works when making music with others. Therefore it is only fair to give something back.

[corrados]

I just saw that you are already on the list: https://github.com/corrados/jamulus/blob/master/src/util.cpp#L461
:-)

[stweil]

Alla gut, sagt der Kurpfälzer.