Fix docbot and create all the doc tickets which were missed

[Gerold103]

TarantoolBot is not working in this repository somewhy. Need to fix it and open all the missed doc tickets.

[Totktonada]

The webhook event redelivery doesn't help, I still get 500. I suspect that there is a problem with parsing particular commit messages. I filed tarantool/docbot#14 on it, when I saw it last time.

[Totktonada]

I fixed the problem in tarantool/docbot#24, the service was auto-redeployed (thanks to the developer experience team!) and I was tried to redeliver a recent paylod. The following issues were opened:

• vshard.storage.info() new option doc#3300
• vshard.router.info() new option doc#3301

I can't repeat sending older payloads, sorry.