Update minibatch.md

[Vaibhavdixit02]

Checklist

• [ ] Appropriate tests were added
• [ ] Any code changes were done in a way that does not break public API
• [ ] All documentation related to code changes were updated
• [ ] The new code follows the contributor guidelines, in particular the SciML Style Guide and COLPRAC.
• [ ] Any new documentation only uses public API

Additional context

Add any other context about the problem here.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (a2ea13c) 8.93% compared to head (3db471b) 0.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #671 +/- ## ========================================= - Coverage 8.93% 0.00% -8.94% ========================================= Files 31 12 -19 Lines 2506 1119 -1387 ========================================= - Hits 224 0 -224 + Misses 2282 1119 -1163 ```

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