Added in anon github contributors to github contrib list
Added in anon github contributors to github contrib list

If email addresses aren't associated with github logins, the contributor
list won't list them in the normal

https://api.github.com/repos/online-go/online-go.com/contributors

url. Adding ?anon=1

https://api.github.com/repos/online-go/online-go.com/contributors?anon=1

lists (some?) of them. 8 seem to be still be missing though, so will
continue looking into it.

Relates to #775

online-go/online-go.com,online-go/online-go.com,online-go/online-go.com,online-go/online-go.com,online-go/online-go.com