Neil Ludlow

I thought this was fixed but apparently not. I've just gone through the update helper again and fixed some parts I'd missed.

I ended up assuming I'd done something wrong and starting over. Instead of using the upgrade helper I believe I just did the minimum to get it working.

I'm new to Gatsby and modern javascript frameworks. For me, I had two different ```resolve: `gatsby-transformer-remark``` plugins in my "gatsby-config.js". I chained these two within the one "gatsby-transformer-remark" item, making...