chore(docs): updated documentation

[sliedig]

Issue number: #165

Summary

Updates and fixes to docs.

Changes

Please provide a summary of what's being changed

• fix: metrics formatting issue
• fix: updated environmental variables in samples to PascalCase as default
• feat: updated homepage content

User experience

Please share what the user experience looks like before and after this change

Checklist

Please leave checklist items unchecked if they do not apply to your change.

• Meets tenets criteria
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented
• PR title follows conventional commit semantics

Is this a breaking change?

RFC issue number:

Checklist:

• Migration process documented
• Implement warnings (if it can live side by side)

Acknowledgment

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Disclaimer: We value your time and bandwidth. As such, any pull requests created on non-triaged issues might not be successful.

[codecov-commenter]

Codecov Report

Base: 56.35% // Head: 56.29% // Decreases project coverage by -0.05% ⚠️

Coverage data is based on head (ff4774f) compared to base (810dd7f).
Patch has no changes to coverable lines.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #175      +/-   ##
===========================================
- Coverage    56.35%   56.29%   -0.06%     
===========================================
  Files           41       41              
  Lines         1778     1778              
===========================================
- Hits          1002     1001       -1     
- Misses         776      777       +1     

Flag	Coverage Δ
unittests	56.29% <ø> (-0.06%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...da.Powertools.Logging/Internal/PowertoolsLogger.cs	90.36% <0.00%> (-0.61%)	⬇️

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[amirkaws]

LGTM