message: Document terminated postcodes route in /docs
diff: @@ -215,6 +215,34 @@ block content
  td
  | See description of <code>nuts</code> field.
  +
  + h4 Terminated Postcode Data (Ordnance Survey Postcode Directory Dataset)
  +
  + p Data returned by the <code>/terminated_postcodes</code> API
  +
  + table.table.table-hover
  + thead
  + tr
  + th Field
  + th Description
  + tbody
  + tr#postcode
  + td postcode <br/> <code>string</code>
  +
  + td
  + strong Postcode.
  + | All currently terminated postcodes within the United Kingdom, the Channel Islands and the Isle of Man, received every 3 months from Royal Mail. 2, 3 or 4-character outward code, single space and 3-character inward code.
  + tr#year-terminated
  + td year_terminated <br/> <code>integer</code>
  + td
  + strong Termination year.
  + | Year of termination of a postcode
  + tr#month-terminated
  + td month_terminated <br/> <code>integer</code>
  + td
  + strong Termination month.
  + | Month of termination of a postcode. 1-January, 2-February, ..., 12-December
  +
  h4 Places Data (Ordnance Survey Open Names Dataset)
  p Data returned by the <code>/places</code> API
  @@ -539,6 +567,12 @@ block content
  code radius=
  | (not required) Limits number of postcodes matches to return. Defaults to 5,000m. Needs to be less than 25,000m.
  + h3#Terminated Terminated Postcode Lookup
  +
  + p Lookup a terminated postcode. Returns the postcode, year and month of termination. Returns 404 if postcode does not exist in our database of terminated postcodes or not valid.
  + pre
  + h4 https://api.postcodes.io/terminated_postcodes/:postcode
  +
  h3#Place-Lookup Place Lookup
  p Find a place by OSGB code (e.g. "osgb4000000074564391"). Returns all available data if found. Returns 404 if place does not exist.
  