lang instructions comments

Hi!

1.5.0.8 seems to work like a charm, but please note about languages:

https://portableapps.com/support/thunderbird_portable#localization the link in this article really should go to https://portableapps.com/apps/internet/thunderbird_portable/localization - and the last link in this one should go to 1.5.0.8 instead. I had full success with Method #2. Keep up the good work.