Add original PDF booklet to the website

Gemfile

@@ -28,3 +28,4 @@ end
 # Performance-booster for watching directories on Windows
 gem "wdm", "~> 0.1.1", :install_if => Gem.win_platform?
 gem "just-the-docs"
+gem "jekyll-pdf-embed"

Gemfile.lock

@@ -31,6 +31,8 @@ GEM
       terminal-table (~> 1.8)
     jekyll-feed (0.15.1)
       jekyll (>= 3.7, < 5.0)
+    jekyll-pdf-embed (1.1.0)
+      jekyll
     jekyll-sass-converter (2.1.0)
       sassc (> 2.0.1, < 3.0)
     jekyll-seo-tag (2.7.1)
@@ -82,6 +84,7 @@ PLATFORMS
 DEPENDENCIES
   jekyll (~> 4.0.1)
   jekyll-feed (~> 0.12)
+  jekyll-pdf-embed
   just-the-docs
   minima (~> 2.5)
   tzinfo (~> 1.2)

_config.yml

@@ -36,6 +36,7 @@ search_enabled: false
 theme: "just-the-docs"
 plugins:
   - jekyll-feed
+  - jekyll-pdf-embed
 
 # Exclude from processing.
 # The following items will not be processed, by default.

_sass/custom/custom.scss

@@ -19,3 +19,4 @@ h1, h2 {
   color: #3771C9;
   font-weight: 500;
 }
+

about.markdown

@@ -7,4 +7,5 @@ permalink: /about/
 
 <img src="/assets/she-logo.png">
 
+<iframe title="PDF file" width="500" height="640" src="/assets/free-software-for-edu-booklet.pdf"></iframe>