Merge pull request #92 from nhsengland/aib/website-approval-process

add content review step to contribution guidance

CONTRIBUTE.md

@@ -15,6 +15,7 @@ If you want to contribute to our resources:
 3. Create a new branch: `git checkout -b my-branch-name`
 4. Make your change
 5. Check how your change looks on our website by hosting the website locally (follow [the steps below](#contribute-to-nhs-england-data-science-website) on how to do this)
+6. Content Review (follow the [instructions](#content-review))
 6. Push to your fork and [submit a pull request][pr]
 
 Your pull request will then be reviewed. You may receive some feedback and suggested changes before it can be approved and your pull request merged.
@@ -56,6 +57,9 @@ To add a new file to the repository and website:
 The website currently uses the [Material for MkDocs](https://squidfunk.github.io/mkdocs-material/getting-started/) theme. This sets the layout, colour, font, search bar, header, footer, navigation bar and contents. You can follow the documentation to make any changes (e.g. change the [colour scheme](https://squidfunk.github.io/mkdocs-material/setup/changing-the-colors/)) as it is simple to use and also easy to overwrite. There is a separate stylesheet, [extra.css](./docs/stylesheets/extra.css), which is used to overwrite the colours, fonts and some of the sizing for some elements.
 Here is a good [cheat sheet](https://yakworks.github.io/docmark/cheat-sheet/) for what features can be used in MkDocs and also interesting features in [Material for MkDocs](https://squidfunk.github.io/mkdocs-material/reference/).
 
+### Content Review
+Prior to making a pull request, ensure that, if the changes involve a change or addition of content (rather than technical or spelling changes) to the site, you have gone through a content review as outlined [here](https://nhsd-confluence.digital.nhs.uk/display/DAT/Website+Gateway). This is to ensure that no sensitive or policy content goes into your PR, as whilst PRs aren't live on the website they are still public (as the repo is public). 
+
 #### Blog / Article
 
 Creating new articles / blog posts is easy: