Update getting-started docs and init templates

[Mark90]

As reported in Discord the template for env.py was out of date. Updated these and other templates to be in line with our own + that of the example-orchestrator (https://github.com/workfloworchestrator/example-orchestrator/pull/31). Also verified and updated the getting-started documentation where needed.

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #942 will not alter performance

_{Comparing update-base-docs-and-templates (b2630f7) with main (c7d2025)}

Summary

✅ 12 untouched benchmarks

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 83.87%. Comparing base (c7d2025) to head (b2630f7). Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #942   +/-   ##
=======================================
  Coverage   83.87%   83.87%           
=======================================
  Files         210      210           
  Lines       10186    10186           
  Branches     1003     1003           
=======================================
  Hits         8543     8543           
  Misses       1376     1376           
  Partials      267      267           

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