fix SPA handler in README.md

[sy9]

What type of PR is this? (check all applicable)

• [ ] Refactor
• [ ] Feature
• [ ] Bug Fix
• [ ] Optimization
• [X] Documentation Update
• [ ] Go Version Update
• [ ] Dependency Update

Description

Changed the SPA handler example in README.md in two areas. First, made sure to actually include the requested path in the call to filepath.Join. Secondly, if the requested path hits a directory, I think it would be beneficial to also serve the indexPath file, and not list the directory contents. I also edited the comments in the README.md file accordingly.

Related Tickets & Documents

• Related Issue #
• Closes #

Added/updated tests?

• [ ] Yes
• [X] No, and this is why: I only changed the README.md, if any tests are necessary please let me know
• [ ] I need help with writing tests

Run verifications and test

• [ ] make verify is passing
• [ ] make test is passing

[codecov[bot]]

Codecov Report

Merging #733 (f7e3116) into main (4a671cb) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #733   +/-   ##
=======================================
  Coverage   78.04%   78.04%           
=======================================
  Files           5        5           
  Lines         902      902           
=======================================
  Hits          704      704           
  Misses        142      142           
  Partials       56       56           

[AlexVulaj]

Thanks for the contribution @sy9 ! Looks good to me.