Two minor, easily fixable issues

[jhollandmcs]

Describe the bug

1. The file dist/browser/controls/slick.columnpicker.js has a typo. The function setColumnVisibiliy should be called setColumnVisibility.
2. This example page has a broken link. It should go to this link, but instead it goes to this broken link.

Reproduction

Self-explanatory.

Which Framework are you using?

Browser

Environment Info

| Executable          | Version |
| ------------------- | ------- |
| (framework used)    | VERSION |
| SlickGrid | VERSION |
| TypeScript          | VERSION |
| Browser(s)          | VERSION |
| System OS           | VERSION |

Validations

• Follow our Code of Conduct
• Read the Wikis.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.

[ghiscoding]

closed by #1057