fix(feature-toggles): correct cdk example

[michaelbrewer]

Issue #, if available:

Description of changes:

Current CDK example has indent errors and some special characters (<U+200B>) and corrected json.dumps

Checklist

• Meet tenets criteria
• Update tests
• Update docs
• PR title follows conventional commit semantics

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov-commenter]

Codecov Report

Merging #601 (dc6e0d3) into develop (2a5be0f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #601   +/-   ##
========================================
  Coverage    99.95%   99.95%           
========================================
  Files          113      113           
  Lines         4535     4535           
  Branches       246      246           
========================================
  Hits          4533     4533           
  Partials         2        2           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4318ac9...dc6e0d3. Read the comment docs.

[michaelbrewer]

@heitorlessa - i could not run the CDK example, some weird special characters. This updated example works when i copy and past it.