Add examples for MDP paper

[codecov[bot]]

Codecov Report

Attention: 24 lines in your changes are missing coverage. Please review.

Comparison is base (ef9293e) 93.40% compared to head (83bb44a) 92.72%. Report is 2 commits behind head on master.

Files	Patch %	Lines
src/plugins/bellman_functions.jl	4.00%	24 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #704 +/- ## ========================================== - Coverage 93.40% 92.72% -0.69% ========================================== Files 27 27 Lines 3397 3422 +25 ========================================== Hits 3173 3173 - Misses 224 249 +25 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[odow]

Closing, but I will come back to this. See #720 instead.