Overview:

  In the DOMStringMap section, in the Example, the src attribute of the img 
  element is missing the closing quote.

Steps to Reproduce:

  1) Go to the HTML Living Standard at https://html.spec.whatwg.org/multipage/
  2) Scroll down to find and click "2.7.3 DOMStringMap"
  3) Scroll down to view the Example
  4) View the sample img element under the text "Given the following fragment 
     and elements with similar constructions:"
  5) Observe the src attribute is missing the closing quote:
       src="towers/rocket.png alt="Rocket Tower">

Actual Results:

  The attribute is missing its closing quote.

Expected Results:

  The quotes surrounding the attribute's value would be correctly closed.

Build Date & Hardware:

  Not applicable.

Additional Builds & Platforms:

  This typographical error will be apparent in any user agent used to view the 
  affected document, on any platform.

Additional Information:

  None.