Spelling/Grammar checks

[longye-tian]

Dear John @jstac ,

As you mentioned in the email, we should check the spelling and grammar of all the contents.

This issue tracker is to update the spelling/grammar check for all the lectures. We can update the progress in this issue tracker.

Here is the list of lectures that have been checked for spelling/grammar:

• [ ] ak2.md (exist current PR #508, wait to avoid merge conflict)
• [x] ar1_processes.md (checked by #538 , no typos)
• [x] business_cycle.md (checked by #538 , no typos)
• [x] cagan_adaptive.md (checked by #538 , no typos)
• [x] cagan_ree.md (updated by #538)
• [x] cobweb.md (checked by #538 , no typos)
• [x] commod_price.md (checked by #538 , no typos)
• [x] complex_and_trig.md (checked by #538 , no typos)
• [x] cons_smooth.md (updated by #538)
• [x] eigen_I.md (checked by #538 , no typos)
• [x] eigen_II.md (update by #538 )
• [x] equalizing_difference.md (checked by #527 )
• [ ] french_rev.md (exist current PR #525 , wait to avoid merge conflict)
• [ ] geom_series.md (exist current PR #524 , wait to avoid merge conflict)
• [ ] greek_square.md (exist current PR #525 , wait to avoid merge conflict)
• [x] heavy_tails.md (update by #538 )
• [x] inequality.md (update by #538 )
• [ ] inflation_hisotry.md (exist current PR #525 , wait to avoid merge conflict)
• [x] input_output.md (update by #538 )
• [x] intro_supply_demand.md (update by #543 )
• [x] laffer_adaptive.md (updated by #545 )
• [x] lake_model.md (updated by #545 )
• [x] linear_equations.md (checked by #528 )
• [x] lln_clt.md (checked by #536 )
• [x] long_run_growth.md (checked, no error)
• [x] lp_intro.md (checked by #531 )
• [ ] markov_chain_I.md (exist current PR #479 , wait to avoid merge conflict)
• [x] markov_chain_II.md (updated by #546 )
• [x] mle.md (updated by #546 )
• [x] money_inflation.md (updated by #546 )
• [x] money_inflation_nonlinear.md (updated by #546 )
• [ ] monte_carlo.md
• [ ] networks.md
• [ ] olg.md
• [ ] prob_dist.md
• [ ] pv.md
• [ ] scalar_dynam.md
• [ ] schelling.md
• [ ] short_path.md
• [ ] simple_linear_regression.md
• [ ] solow.md
• [ ] supply_demand_heterogeneity.md
• [ ] supply_demand_multiple_goods.md
• [ ] time_series_with_matrices.md (exist current PR #534 , wait to avoid merge conflict)
• [x] unpleasent.md (checked by #535 )

Best ❤️ Longye

[jstac]

Thanks @longye-tian , nice work. It will be good to have this done.