docs: Update badges to correct links in README

[lsetiawan]

Remove link to incorrect project from eScience. Update test badge to CI and Docs badge to readthedocs.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cd85c5d) 85.59% compared to head (51b683c) 88.36%.

❗ Current head 51b683c differs from pull request most recent head 89330cf. Consider uploading reports for the commit 89330cf to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #107      +/-   ##
==========================================
+ Coverage   85.59%   88.36%   +2.77%     
==========================================
  Files          36       35       -1     
  Lines        1846     1770      -76     
==========================================
- Hits         1580     1564      -16     
+ Misses        266      206      -60     

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