User guide: Programmatic read access

[Crocstar]

Programmatic read access to WMO Codes Registry - keep and create a page

[marqh]

agree that we should keep this content for the most part

[marqh]

how do i get there:

about
  >  making use of the registry
    > GETting resources from the registry

[marqh]

introduction sentence,

... there is an entity in the register:
http://codes.wmo.int/bufr4/codeflag/0-20-086

then the three headings:

• Content Negotiation
• Register Entity retrieval
• Entity and Register Item retrieval

[Crocstar]

In the Register Entity retrieval section, check use of the word 'register'