I propose this topic as feature request, but it's also a documentation issue, as lack of details in user guide paragraph: https://rasa.com/docs/rasa/core/actions/#custom-actions.

What specified in paragraph Execute Actions in Other Code is obscure to me, and details at the API documentation link [Action Server](]https://rasa.com/docs/rasa/api/acti

The documentation for deploying to Heroku here shows an out of date Procfile example. The correct Procfile should be:

web: bundle exec puma -C config/puma.rb
sidekiq: bundle exec sidekiq -C config/sidekiq.yml -q stealth_webhooks -q stealth_replies -r ./config/boot.rb

This is one of the breaking changes for version 1.1.0

Describe the bug
Cannot use 'cp' command while installing it on Windows.
It is needed to replace 'cp' with 'copy' in scripts written in package.json if an user wants to install botfront on Windows machine.

To Reproduce
Steps to reproduce the behavior:

1. Install choco
2. Install meteor
3. Install botfront using meteor npm install in Windows Powershell.

Expected behavior

HIBERT: Document Level Pre-training of Hierarchical Bidirectional Transformers for Document Summarization
Xingxing Zhang, Furu Wei, Ming Zhou
to appear in ACL 2019
https://arxiv.org/abs/1905.06566

Here are SSML helper functions that should be extended to covers all SSML features supported by Alexa and [Google Actions](https://developers.google.com/assistant/actions

When creating a button message, if you include an '&' symbol it fails to display the message in the preview or in the webchat. The webchat endpoints simply sends back an empty array. Currently to get round this you have to use the & character reference.