History of EventTarget.removeEventListener()

Fixed capitalization

Added space between method and removes in the opening line. (The EventTarget.removeEventListener() "methodremoves")

Missing space between method and removes in the opening line. "The EventTarget.removeEventListener() methodremoves

+bug 1274520

Formatting example to fit within a 62-character column. (Example is ESLint- and JSLint-compliant.)

The original example wasn’t very clear. Although this example is more verbose, it’s probably clearer.

Add headings as per instructions.

Update compatibility section.

Fix formatting.