Merge pull request #18765 from GArik:tutorials
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Tue, 10 Nov 2020 20:08:29 +0000 (20:08 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Tue, 10 Nov 2020 20:08:29 +0000 (20:08 +0000)

Trivial merge