Rewrite the Containers documentation

[odow]

Closes #1663

Preview: https://jump.dev/JuMP.jl/previews/PR2476/manual/containers/

[codecov]

Codecov Report

Merging #2476 (7d7314b) into master (ade0f22) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2476   +/-   ##
=======================================
  Coverage   92.38%   92.38%           
=======================================
  Files          43       43           
  Lines        4661     4661           
=======================================
  Hits         4306     4306           
  Misses        355      355           

Impacted Files	Coverage Δ
src/Containers/macro.jl	93.33% <ø> (ø)
src/macros.jl	92.30% <ø> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update ade0f22...da22361. Read the comment docs.