Merge pull request #2943 from alphagov/update-taxonomy-signup-link #1029

Job	Run time
Lint JavaScript / Run Standardx	20s
Security Analysis / Run Brakeman	15s
Lint SCSS / Run Stylelint	25s
Lint Ruby / Run RuboCop	16s
Test JavaScript / Run Jasmine	56s
Test Ruby / Run Minitest	5m 53s
	8m 5s

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