Update README.md

Author: trevorblades

README.md

@@ -1,6 +1,6 @@
 # Embedded Excalidraw diagrams
 
-This custom transformer for `gatsby-remark-embedder` allows you to embed Excalidraw diagrams in Markdown content simply by pasting an Excalidraw link in the source.
+This custom transformer for [`gatsby-remark-embedder`](https://github.com/MichaelDeBoey/gatsby-remark-embedder) allows you to embed Excalidraw diagrams in Markdown content simply by pasting an Excalidraw link in the source.
 
 The code for this library is lifted from [this file](https://github.com/excalidraw/excalidraw-blog/blob/master/src/excalidraw-embed/index.js) in the [`excalidraw-blog`](https://github.com/excalidraw/excalidraw-blog) Gatsby site. All credit for this transformer goes to those authors. I was inspired to do this when I saw [Alex Luong's tweet](https://twitter.com/alex__luong/status/1257909443112497153) about making this functionality into a `gatsby-remark-excalidraw` plugin.