Update documentation for LVM mount for Stretch
Originally created by @emmapeel on #12484 (Redmine)
With Tails 3.0beta3 and 4 at least, I don’t need to run the command ‘vgchange -ay’ to mount the internal harddrive LVM group.
We can take out the information on the website, at the bottom of:
https://tails.boum.org/doc/encryption_and_privacy/your_data_wont_be_saved_unless_explicitly_asked/
Feature Branch: emmapeel:docs/12484-updateLVM