404s on home page

[robredpath]

A number of the links on https://iatiregistry.org return 404 or link to inappropriate content.

"Register a Publisher"

...should link to https://iatiregistry.org/register

"Using IATI data"

...should link to https://iatistandard.org/en/using-data/

"How do I register my data?" & "How does the IATI Registry work?"

...can be removed

[robredpath]

@cormachallinanderilinx please can you take a look at this ?

[cormachallinanderilinx]

@robredpath
Changes are on staging and PR here: #446

[robredpath]

Looks good to me @cormachallinanderilinx - please deploy to live

[cormachallinanderilinx]

deployed, we can close