Perform various GitHub repo chores

[c10k-cc]

Perform various GitHub repo chores

Summary

This issue / proposal addresses various miscellaneous tasks related to GitHub repo which need to be performed.

Description

These are some of the tasks which need to be performed (on all 4 repos):

• add project description
• add project topics / keywords
  • look at other similar trading bots, libs & frameworks and copy keywords from them
• add project URL
  • use organisation repos page
• configure GitHub Actions file
  • add testing pipeline
  • add linting / re-formatting pipeline
  • additions??
• add PULL_REQUEST_TEMPLATE file
• add ISSUE_TEMPLATE file
• add other common files
  • take a look here: https://stackoverflow.com/questions/60507097
  • and here: https://keepachangelog.com/
  • and also here: https://github.com/kmindi/special-files-in-repository-root/blob/master/README.md
  • (semi-unrelated) here also: https://github.com/vweevers/common-changelog