Update ExternalImages.tid

Minor typo correction
-ize > -ise (conform to Doc Style Guide)
-ize > -ise (conform to Doc Style Guide)
spelling mistake
fix typo
add missing word
Merge pull request #1270 from aelocson/patch-1

Fix typos
Fix links to tw.com from tw.com/dev
Fix links to tw.com from tw.com/dev
Fix links to tw.com from tw.com/dev
Fix links to tw.com from tw.com/dev
Fix links to tw.com from tw.com/dev
Fix links to tw.com from tw.com/dev
Correct two links
Fix links to tw.com from tw.com/dev
Fix links to tw.com from tw.com/dev
Fix links to tw.com from tw.com/dev
Fix links to tw.com from tw.com/dev
Update cla-individual.md
Present the best approach to navigating first

The best technique should be the first one listed. Not everyone will read to the end.