Add ITensor logos to docs

[mtfishman]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.26%. Comparing base (f68391f) to head (c792662).
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #126       +/-   ##
===========================================
+ Coverage   18.37%   90.26%   +71.89%     
===========================================
  Files          50       54        +4     
  Lines        3527     3575       +48     
===========================================
+ Hits          648     3227     +2579     
+ Misses       2879      348     -2531     

Flag	Coverage Δ
docs	18.37% <ø> (ø)

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