Cut Gemfile link that's throwing errors (jupyter#666)

Author: palewire

README.md

@@ -57,7 +57,7 @@ To stop serving the website, press **`Ctrl`**-`C` in your terminal
 
 ### Build the site manually
 
-To build the site manually, you'll need Ruby, Jekyll, and the packages that Jekyll uses to build the site (these are defined in [`Gemfile`](Gemfile)).
+To build the site manually, you'll need Ruby, Jekyll, and the packages that Jekyll uses to build the site (these are defined in `Gemfile`).
 
 Follow these steps:
 
@@ -76,7 +76,7 @@ Follow these steps:
      ```console
      $ gem install jekyll bundler
      ```
-2. **Install the site's build dependencies**. These are specified in [`Gemfile`](Gemfile).
+2. **Install the site's build dependencies**. These are specified in `Gemfile`.
    
    ```console
    $ bundle install