added 3d interaction to blanket component

[shimwell]

Proposed changes

Adding another 3d interaction to the docs as and example for @mateczentye

Types of changes

What types of changes does your code introduce to the Paramak?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Code refactoring
• Documentation Update (if none of the other choices apply)
• New tests

Checklist

• Pep8 applied
• Unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[codecov]

Codecov Report

Merging #850 (4870f20) into develop (3691ba2) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #850   +/-   ##
========================================
  Coverage    86.71%   86.71%           
========================================
  Files           74       74           
  Lines         5345     5345           
========================================
  Hits          4635     4635           
  Misses         710      710           

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