Migrate co-op pages from old site

I ran `ruby migrate_coop_pages.rb` in `scripts`. There will need to be
some manual tidying up of the generated `.md` files under `_coops` but
I think this is a good start. As a one-off it doesn't warrant the time
it would take to improve the migration script.

_coops/dtc-innovation.md

@@ -0,0 +1,43 @@
+---
+title: dtc innovation
+name: dtc innovation
+website: https://dtc-innovation.org/
+email: contact@dtc-innovation.org
+twitter: dtc-innovation
+github: 
+telephone: +447455921569
+address: London,United Kingdom
+latitude: 
+longitude: 
+clients:
+- bbc
+- data-gouv-fr
+- open-data-france
+- open-data-institute
+- radio-france
+services:
+- business-systems
+- data-standards
+- development
+- ideation
+- leadership-development
+- mentoring
+- rapid-application-development
+- research
+- user-research
+technologies:
+- ansible
+- d3
+- docker
+- htmlcss
+- javascript
+- json-schema
+- aws-lambda
+- lets-encrypt
+- nginx
+- node-js
+- reactjs
+---
+
+We are a pluridisciplinary team of people who bring human-centric innovation, web expertise and co-operation practices to your team and products.
+It translates into iterative design thinking, agile software development and bespoke training consultancy services – remotely and in house.