Update merging examples

[jpmckinney]

Related to bug in documentation reported in CRM issue 3580.

I corrected the release package uri's, which were all the same, which makes no sense, as non-identical, contemporaneous packages shouldn't have the same uri.

The other differences are that the record packages from the old script:

• added a fragment identifier to package uri's
• had a different id for the compiled release
• omitted the version, license and publicationPolicy
• didn't version the following as a whole: party roles, tender submissionMethod

---

Since the old script also didn't preserve order, to compare the new and old files, I ran:

curl -O https://raw.githubusercontent.com/open-contracting/standard/1.1-dev/standard/docs/en/examples/merging/merged.json
curl -O https://raw.githubusercontent.com/open-contracting/standard/1.1-dev/standard/docs/en/examples/merging/versioned.json

And then in Ruby:

require 'json'
require 'hashdiff'

def load(path)
  JSON.load(File.read(path))
end

['merged', 'versioned'].each do |basename|
  basename = "#{basename}.json"
  a = load(basename)
  b = load("standard/docs/en/examples/merging/#{basename}")
  puts basename
  HashDiff.diff(a, b).each do |diff|
    p diff
  end
  puts
end