I think I've Found a little typo

Found a little typo in the lesson:

CSS Grid: Use CSS Grid units to Change the Size of Columns and Rows

The 4° paragraph needs to be updated from:

% : adjusts the column or row to the percent width of its container.

To:

% : adjusts the column or row to the percent width or height of its container.

It’s nothing serious, but I thought It may be good just to clarify this before any further misundertandings can happen.

This would be an easy change to make if you would like to submit the PR yourself.