Add license notice to primary init file

[michaelosthege]

Closes #57

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d79af82) 93.43% compared to head (ad9d118) 93.43%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #59   +/-   ##
=======================================
  Coverage   93.43%   93.43%           
=======================================
  Files          11       11           
  Lines        1218     1219    +1     
=======================================
+ Hits         1138     1139    +1     
  Misses         80       80           

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[lhelleckes]

Ideally, you should add an email or some other form of contact as well. Maybe Marco?

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[michaelosthege]

• The JuBiotech maintainers know my real name.

At least one of the following two applies:

• The JuBiotech maintainers know my current employer.

• I am not making this contribution on behalf of my current employer.

[michaelosthege]

I have read the CLA Document and I hereby sign the CLA.