Update get-datastore.rst

[laiqmuhh]

Description of changes: added JPEG 2000 as the lossless storage format

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[yzhao112]

You should assigned the issue

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.34%. Comparing base (68039fa) to head (deae9ca).
⚠️ Report is 406 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #9849      +/-   ##
===========================================
- Coverage    93.40%   93.34%   -0.06%     
===========================================
  Files          211      209       -2     
  Lines        17012    16823     -189     
===========================================
- Hits         15890    15704     -186     
+ Misses        1122     1119       -3     

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