docs: Fix a few typos

[timgates42]

There are small typos in:

• PythonBuddy/static/js/cm-validator-remote.js
• README.md

Fixes:

• Should read virtualenv rather than vitualenv.
• Should read error rather than eror.
• Should read enjoyed rather than enojyed.
• Should read curriculum rather than curriculumn.

Semi-automated pull request generated by https://github.com/timgates42/meticulous/blob/master/docs/NOTE.md