Update about.html (#372)

Fixes #344

about.html

@@ -18,6 +18,7 @@
                     <h1 class="section-header">About Speedometer 3</h1>
                     <div class="section-content">
                         <p>Speedometer 3 is a benchmark for web browsers that measures Web application responsiveness by timing simulated user interactions on various workloads.</p>
+                        <p>It's developed as an open source project, with decisions being made under a <a href="https://github.com/WebKit/Speedometer/blob/main/Governance.md">multistakeholder governance model</a> between the three widely distributed web browser engine projects.
                         <p>
                             The following high level user journeys are implemented in the current version. Each of these journeys has one or more workloads which test important aspects of it - for example commonly used patterns, frameworks, or
                             technologies.