Tutorials update

[mdienst]

• Added tutorial for displacement wave over interface
• Added some references to tutorials
• Updated tutorial overview in READEME.md file and on home page of documentation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.11%. Comparing base (94dee58) to head (0cacc36).
Report is 14 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #181   +/-   ##
=======================================
  Coverage   91.11%   91.11%           
=======================================
  Files          44       44           
  Lines        4187     4187           
=======================================
  Hits         3815     3815           
  Misses        372      372           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.