Fix link to open standards & licences page
"waive" is correct here

"waive" is the verb. "waiver" is the noun.
Don't think "aporia" is right. Think it was "a priori"?

Not sure if this is the style we want or if a non-latin phrase might
be better.
Merge pull request #68 from alphagov/opensource-copyedit

Open source copyedit