Merge pull request #1850 from ottok/gpg-sign-by-default

Add tip about commit.gpgsign to automate all commits being signed

Author: ben

book/07-git-tools/sections/signing.asc

@@ -199,5 +199,6 @@ Merge made by the 'recursive' strategy.
 ==== Everyone Must Sign
 
 Signing tags and commits is great, but if you decide to use this in your normal workflow, you'll have to make sure that everyone on your team understands how to do so.
+This can be achieved by asking everyone working with the repository to run `git config --local commit.gpgsign true` to automatically have all of their commits in the repository signed by default.
 If you don't, you'll end up spending a lot of time helping people figure out how to rewrite their commits with signed versions.
 Make sure you understand GPG and the benefits of signing things before adopting this as part of your standard workflow.