Correct name of gem to that of the theme (mmistakes#1149)

Author: Peter Dimou

docs/_docs/16-stylesheets.md

@@ -45,7 +45,7 @@ To override the default [Sass](http://sass-lang.com/guide) (located in theme's
 
 1. Copy directly from the Minimal Mistakes theme gem
 
-   - Go to your local Basically Basic gem installation directory (run 
+   - Go to your local Minimal Mistakes gem installation directory (run 
      `bundle show minimal-mistakes-jekyll` to get the path to it).
    - Copy the contents of `/assets/css/main.scss` from there to 
      `<your_project>`.
@@ -160,4 +160,4 @@ And `$susy` is used for setting [the grid](http://susy.oddbird.net/) the theme u
 <figure>
   <img src="{{ '/assets/images/mm-susy-grid-overlay.jpg' | absolute_url }}" alt="Susy grid overlay for debugging">
   <figcaption>Susy grid debug overlay enabled.</figcaption>
-</figure>
+</figure>