Correct links under Further Reading (404 error fix + naming and accreditation + accessibility consideration) 

- (404 error fix) http://northtemple.com/1608 doesn't exist, so I have repointed to where the file is hosted (http://cameronmoll.com/downloads/Web_Accessibility_Checklist.pdf). 

- (Naming and accreditation) Gave correct accreditation to Cameron Moll's article discussing Aaron Cannon's PDF checklist. 

- (Accessibility consideration) Also added title attributes to the two anchor tags referenced <3