reorder docs

README.md

@@ -100,9 +100,6 @@ A direct installation of PostgreSQL will not put the `createdb` command on your
 
 ## Documentation
 
-- [Deploying](#deploying)
-  - [Egress Proxy](#egress-proxy)
-  - [Sandbox environment](#sandbox-environment)
 - [Infrastructure overview](#infrastructure-overview)
   - [GitHub Repositories](#github-repositories)
   - [Terraform](#terraform)
@@ -110,15 +107,18 @@ A direct installation of PostgreSQL will not put the `createdb` command on your
   - [New Relic](#new-relic)
   - [Onboarding](#onboarding)
   - [Setting up the infrastructure](#setting-up-the-infrastructure)
+- [Testing](#testing)
+  - [CI testing](#ci-testing)
+  - [Manual testing](#manual-testing)
+  - [To run a local OWASP scan](#to-run-a-local-owasp-scan)
+- [Deploying](#deploying)
+  - [Egress Proxy](#egress-proxy)
+  - [Sandbox environment](#sandbox-environment)
 - [Database management](#database-management)
   - [Initial state](#initial-state)
   - [Data Model Diagram](#data-model-diagram)
   - [Migrations](#migrations)
   - [Purging user data](#purging-user-data)
-- [Testing](#testing)
-  - [CI testing](#ci-testing)
-  - [Manual testing](#manual-testing)
-  - [To run a local OWASP scan](#to-run-a-local-owasp-scan)
 - [One-off tasks](#one-off-tasks)
 - [How messages are queued and sent](#how-messages-are-queued-and-sent)
 - [Writing public APIs](#writing-public-apis)