Add "Contributing to the Handbook" page

guides/contributing_to_the_handbook.md

@@ -0,0 +1,32 @@
+# Contributing to the Handbook
+
+This guide aims to make it easier to submit changes to the Handbook without using `git` or a text editor.
+
+## Adding new pages in Github
+
+### Creating the page
+
+1. [Go to the handbook.](https://github.com/madetech/handbook)
+2. Click through to the folder you want.
+3. Click "Create new file"
+4. Type out your contents under "Edit new file" using [Markdown](https://guides.github.com/features/mastering-markdown/).
+5. Preview your changes at any time by clicking "Preview".
+6. When you're happy with your page, write a short description under "Commit new file". For example, "Add Flexible Holiday Page".
+7. Select "Create a new branch for this commit" and give it a name relevant to your change. For example, "add-flexible-holiday-page".
+8. Submit the change by clicking "Propose new file".
+9. You will be then be able to create a Pull Request to get review of your new page. Click "Create pull request", then share the link with people!
+
+### Addressing review
+
+1. Click on the "Files changed" tab on your Pull Request.
+2. Click on the pencil icon in the toolbar above the file content.
+3. Make your changes as before, previewing until you're happy with them.
+4. Under "Commit Changes" describe what this change does. For example, "Fix typo" or "Extend section on getting a company credit card".
+5. Keep the selected option as "Commit directly". You don't need to create a new branch for every change.
+6. Press "Commit changes".
+
+### Finalising the change
+
+1. Get feedback from the wider company and address any feedback. Once you've had your Pull Request approved, you're ready to finalise your change.
+2. On the "Conversation" tab of your Pull Request, click "Merge pull request".
+3. Your new page will now be visible in the Handbook.