Update README.md

[poju3185]

Summary

Update documentation. The variable name in downloadH5PVendor.js should be h5pCommit instead of h5pVersion.

References

https://github.com/learningequality/kolibri/blob/release-v0.16.x/packages/hashi/downloadH5PVendor.js

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PR process

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
• If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')
• If this is an important user-facing change, PR or related issue has a 'changelog' label
• If this includes an internal dependency change, a link to the diff is provided

Reviewer checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[rtibbles]

Yes - I must have changed it at some point without updating the readme, thank you!

[github-actions]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.16.1.dev0_git.20240321185458.pex
Windows Installer (EXE)	kolibri-0.16.1.dev0+git.20240321185458-unsigned.exe
Debian Package	kolibri_0.16.1.dev0+git.20240321185458-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.16.1.dev0+git.20240321185458-0.4.0.dmg
Android Package (APK)	kolibri-0.16.1.dev0+git.20240321185458-0.1.0-debug.apk
TAR file	kolibri-0.16.1.dev0+git.20240321185458.tar.gz
WHL file	kolibri-0.16.1.dev0+git.20240321185458-py2.py3-none-any.whl