Don't exclude README.md

It may be useful to keep in /vol/rr/www so that future people joining
the group know where to look for edit access.

README.md

+---
+layout: null
+---
+
 Program Specification & Verification Group Website: http://psvg.doc.ic.ac.uk/
 =============================================================================
 
@@ -6,6 +10,8 @@ Program Specification & Verification Group Website: http://psvg.doc.ic.ac.uk/
 The source code for [this site](http://psvg.doc.ic.ac.uk) is [hosted on the DoC GitLab server](https://gitlab.doc.ic.ac.uk/resource-reasoning/www-rw.doc.ic.ac.uk),
 you should have access to edit it if a member of the resource-reasoning group.
 
+**DO NOT EDIT THE SOURCE CODE IN `/vol/rr/www`, IT IS ALL REPLACED EACH TIME THE SITE IS REBUILT FROM VERSION CONTROL**
+
 Technical Detail
 ----------------
 This website is built using the [Jekyll](http://jekyllrb.com/) website framework.
@@ -25,8 +31,9 @@ permalink: /my-custom-page-path/
 ```
 
 Variables that templates currently take into account are:
-* title, sets the page title
-* menu, (default: true) places the page into the website's navigation menu
+
+* `title`, sets the page title
+* `menu`, (default: false) places the page into the website's navigation menu
 
 The main content of the page should then follow.
 
@@ -42,10 +49,10 @@ are consistent.
 An additional check that external links are still live is also run, but this test is permitted to fail without blocking
 the deployment.
 
-The site is deployed to `/vol/rr/www-rw` automatically on successful build.
+The site is deployed to `/vol/rr/www` automatically on successful build.
 
-Local Testing
--------------
+Locally Building and Testing
+----------------------------
 If you wish to test the site locally, ensure you have ruby installed, and then initially run:
 ```
 gem install bundler

_config.yml

@@ -13,7 +13,6 @@ exclude:
   - Gemfile*
   - Rakefile
   - .gitlab-ci.yml
-  - README.md
   - vendor
 
 collections: