Improve readme instructions issue#35

[nelsonic]

• Re-organised the Readme into clearerer headers. #35
• Updated screenshots. #111
• Included links to new "learn-ngrok" tutorial: https://github.com/dwyl/learn-ngrok
• added .env_sample file to speed up setup.
• clarified instructions for setting Private Key as (multi-line) environment variable see: https://github.com/dwyl/learn-environment-variables/issues/17

[codecov[bot]]

Codecov Report

Merging #64 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #64   +/-   ##
=======================================
  Coverage   99.59%   99.59%           
=======================================
  Files          21       21           
  Lines         247      247           
=======================================
  Hits          246      246           
  Misses          1        1

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[SimonLab]

We might need to update the Erlang version on Travis:

We can define the version in our travis.yml file, see https://docs.travis-ci.com/user/languages/erlang/

However I don't think the error is directly linked to the Erlang version, I'll try to see what cause the exit status to 1:

[nelsonic]

@Cleop / @iteles / @SimonLab I made some pretty substantial updates to the readme including an end-to-end set of screenshots and installation instructions. Not going to add anything else now, so feel free to review and give feedback. For reading the README.md changes, see: https://github.com/dwyl/github-backup/blob/improve-readme-instructions-issue%2335/README.md

Thanks! ❤️