Update .md qb-spark files

[jorgeMarin1]

Description

I'm trying to deploy a website on Github Pages but the MDX compiler is complaining about some html features in the .md files of this repository, so I need to fix them.

Type of change

Documentation update. I'm only changing some html features of the .md files for pure markdown

Checklist:

• Update CloudStorage.md
• Update FAQ.md
• Update OTreeAlgorithm.md
• Update QbeastFormat.md
• Add tests.
• Your branch is updated to the main branch (dependent changes have been merged).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.14%. Comparing base (910c43d) to head (4a807eb).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #358   +/-   ##
=======================================
  Coverage   90.14%   90.14%           
=======================================
  Files         103      103           
  Lines        2790     2790           
  Branches      349      349           
=======================================
  Hits         2515     2515           
  Misses        275      275           

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