Add dm-crypt section to faq documentation page

[fabianbuettner]

Closes #830
Signed-off-by: Fabian Büttner fabian.buettner@rub.de

[ejoerns]

Thanks for the patch!

Please let the Mail used for Signed-off-by match your git commit author mail (see DCO check failure)

[codecov]

Codecov Report

Merging #835 (c6a61fc) into master (1289add) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #835      +/-   ##
==========================================
+ Coverage   72.72%   72.73%   +0.01%     
==========================================
  Files          28       28              
  Lines        9089     9089              
==========================================
+ Hits         6610     6611       +1     
+ Misses       2479     2478       -1     

Impacted Files	Coverage Δ
src/main.c	76.25% <0.00%> (+0.07%)	⬆️

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[fabianbuettner]

Sorry, I forgott to change the author's email address to use the correct email address. This is my first PR :) what's the right way to fix this?

[ejoerns]

@fabianbuettner no worries ;) You can just fix you commit and force-push on the branch you created this PR from

[jluebbe]

I've added an example config snippet and made some minor wording changes.

Thanks for your contribution!