docs removal

[koaning]

Proposed changes:

@akelad like we discussed in slack, this part of the docs will now be removed will be added later, after review, to the blog.

@amn41 @dakshvar22 pinging you here such that you're also aware of the change.

[akelad]

i guess you meant to request a review from me rather than assign right?

[koaning]

@akelad yes, my bad.

i think i forgot to remove the bert link in the doc index, pushing commit now.

[koaning]

@akelad there seems to be an issue with a docker container not building.

Building rasa (1.9.5)
 - Building wheel
 - Built rasa-1.9.5-py3-none-any.whl
Processing ./dist/rasa-1.9.5-py3-none-any.whl
Installing collected packages: rasa
Successfully installed rasa-1.9.5
WARNING: You are using pip version 19.3.1; however, version 20.0.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Error processing tar file(exit status 1): write /root/.cache/pip/http/d/9/c/c/b/d9ccb85290d9889b7fd067a45d9cd98ce7bcd4ee2d66f167f5e940c2: no space left on device

##[error]Process completed with exit code 1.

I am restarting the jobs just to be sure.

[koaning]

@akelad I'd love to click that merge button but CI is showing weird things since your indentation commit.

The tests fail but I am unable to expand it to see what is in there. I'll hit re-run just in case.