Feature/example11 refinement

Description

Refined example11 with comments and added a hard-worker controller Updated README file with link to the System Overview documentation

What to focus on

• put content here.

Reviewers

• @alexluleme
• @amyblank
• @bz
• @cw
• @ps
• @wd

Resources

Issues

What issues does this fix?

• Fixes #issue-number