[Openid-specs-ab] Issue #978: URL for errata (openid/connect)

[Nat Sakimura]

New issue 978: URL for errata
https://bitbucket.org/openid/connect/issues/978/url-for-errata

Nat Sakimura:

We should get new URIs for erratas instead of over-writing the previous ones. 
e.g., http://openid.net/specs/openid-connect-core-1_0e1.html instead of http://openid.net/specs/openid-connect-core-1_0.html. 

http://openid.net/specs/openid-connect-core-1_0.html then should be marked as "has errata" which links to the errata incorporated version.