minor link fix (gatsbyjs#6419)

docs/docs/wordpress-source-plugin-tutorial.md

@@ -6,7 +6,7 @@ title: "WordPress Source Plugin Tutorial"
 
 ### What this tutorial covers:
 
-In this tutorial, you will install the `gatsby-source-wordpress` plugin in order to pull blog and image data from a WordPress install into your Gatsby site and render that data. This [Gatsby + WordPress demo site](https:/github.com/gatsbyjs/gatsby/tree/master/examples/using-wordpress) shows you the source code for an example site similar to what you’re going to be building in this tutorial, although it’s missing the cool images you’ll be adding in the next part of this tutorial, [Adding Images to a WordPress Site](/docs/image-tutorial/). :D
+In this tutorial, you will install the `gatsby-source-wordpress` plugin in order to pull blog and image data from a WordPress install into your Gatsby site and render that data. This [Gatsby + WordPress demo site](https://github.com/gatsbyjs/gatsby/tree/master/examples/using-wordpress) shows you the source code for an example site similar to what you’re going to be building in this tutorial, although it’s missing the cool images you’ll be adding in the next part of this tutorial, [Adding Images to a WordPress Site](/docs/image-tutorial/). :D
 
 #### But do you prefer GraphQL?