MAINT: Standardize README for Lectures

[mmcky]

Also, very small thing, but could you please tidy up the README for https://github.com/QuantEcon/lecture-jax ?

Perhaps we should have a common README that includes a link to the manual...?

• lecture-jax/ MAINT: update README for standard format lecture-jax#147
• lecture-dle/ MAINT: anaconda, standard readme, bibtex lecture-dle#10
• lecture-python.myst/ MAINT: standardize README lecture-python.myst#394
• lecture-dps/ MAINT: upgrade anaconda, default README and bibtex style lecture-dps#8
• lecture-stats/ MAINT: Update anaconda, README, and bibtex style lecture-stats#23
• lecture-dynamics/ MAINT: Update anaconda, README, status, and bibtex style lecture-dynamics#6
• lecture-python-advanced.myst/ MAINT: standard README lecture-python-advanced.myst#158
• lecture-tools-techniques/ MAINT: upgrade anaconda and maintenance lecture-tools-techniques#8
• lecture-python-intro/ MAINT: Upgrade anaconda and README lecture-python-intro#396
• lecture-eqm/ MAINT: upgrade anaconda, README, and status lecture-eqm#10
• lecture-python-programming.myst/. MAINT: Standardized README lecture-python-programming.myst#311

[mmcky]

• @mmcky to propagate to other lectures

[mmcky]

• MAINT: Upgrade anaconda and README lecture-python-intro#396

[mmcky]

Closing this issue as all repos have been updated.