Update docs to use IDAES/examples instead of IDAES/examples-pse

[dangunter]

Fixes #1131

Summary/Motivation:

Documentation needs to point to the new examples

Changes proposed in this PR:

• Fix links and associated description
• Update installation steps

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[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.01 ⚠️

Comparison is base (0ae7a98) 76.35% compared to head (4d5147b) 76.35%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1132      +/-   ##
==========================================
- Coverage   76.35%   76.35%   -0.01%     
==========================================
  Files         369      369              
  Lines       60715    60715              
  Branches    11198    11198              
==========================================
- Hits        46359    46356       -3     
- Misses      11954    11958       +4     
+ Partials     2402     2401       -1     

see 1 file with indirect coverage changes

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[ksbeattie]

Nitpick: I kinda liked the diataxis table with the somewhat smaller fonts...

[andrewlee94]

@dangunter It looks like the docs build for this PR has expired; could you fix the conflict so that the docs can be rebuilt. Note that our supported Python versions are now 3.8-3.11.

[dangunter]

@andrewlee94 @MAZamarripa and @lbianchi-lbl this is ready for review now

[andrewlee94]

Only one minor comment on updating the supported Python versions, but otherwise looks good to me.

[ksbeattie]

LGTM