Release v5.1.1

Patch release to change the method of installation
npm uses:

#433

Author: tombye

CHANGELOG.md

@@ -1,18 +1,18 @@
-## Unreleased
+## 5.1.1
 
-### New Features
-
-- [Adds support for GA4 as a separate tracking parameter from Universal Analytics](https://github.com/alphagov/tech-docs-gem/pull/350)
+### Fixes
 
-NB: [Universal Analytics is now gone](https://support.google.com/analytics/answer/11583528?hl=en) so anyone still using the older approach is likely facing broken analytics, or has developed a workaround.
-We'll return at a later date with a major breaking change that deprecates UA code.
+- [Change npm installation method used](https://github.com/alphagov/tech-docs-gem/pull/433)
 
 ## 5.1.0
 
 ### New features
 
 - [Add GA4 support](https://github.com/alphagov/tech-docs-gem/pull/350)
 
+NB: [Universal Analytics is now gone](https://support.google.com/analytics/answer/11583528?hl=en) so anyone still using the older approach is likely facing broken analytics, or has developed a workaround.
+We'll return at a later date with a major breaking change that deprecates UA code.
+
 ### Fixes
 
 - [Fix syntax highlighting by pinning middleman-syntax to v3.6+](https://github.com/alphagov/tech-docs-gem/pull/427)

lib/govuk_tech_docs/version.rb

@@ -1,3 +1,3 @@
 module GovukTechDocs
-  VERSION = "5.1.0".freeze
+  VERSION = "5.1.1".freeze
 end