Update more meta descriptions

_includes/values/description.html

@@ -1,11 +1,13 @@
 {%
+  if page.description and page.intro
+%}{{ page.description }} {{ page.intro | markdownify | strip_html }}{%
   if page.description
 %}{{ page.description }}{%
   elsif page.intro
-%}{{ page.intro | markdownify | strip_html }}{%
+%}One-page guide to {{ page.title }}: usage, examples, and more. {{ page.intro | markdownify | strip_html }}{%
   elsif page.type == 'article'
-%}One-page reference for {{ page.title }}: usage, examples, links, snippets, and more.{%
+%}The one-page guide to {{ page.title }}: usage, examples, links, snippets, and more.{%
   else
-%}One-page reference for {{ page.title }}: usage, examples, links, snippets, and more.{%
+%}The one-page guide to {{ page.title }}: usage, examples, links, snippets, and more.{%
   endif
 %}

bash.md

@@ -4,6 +4,8 @@ category: CLI
 layout: 2017/sheet
 tags: [Featured]
 updated: 2017-08-26
+description: |
+  One-page reference on Bash shell scripting. Learn about variables, functions, errors, process ID's with examples and more.
 ---
 
 Getting started

css-antialias.md

@@ -4,6 +4,8 @@ category: CSS
 layout: 2017/sheet
 tags: [Featured]
 updated: 2017-08-26
+intro: |
+  Here's a 4-line snippet on how to get beautiful, antialiased text with CSS.
 ---
 
 ### Antialias

es6.md

@@ -5,6 +5,8 @@ layout: 2017/sheet
 tags: [Featured]
 updated: 2017-10-02
 weight: -10
+intro: |
+  A quick overview of new JavaScript features in ES2015, ES2016, ES2017 and beyond.
 ---
 
 ### Block scoping

httpie.md

@@ -5,7 +5,7 @@ layout: 2017/sheet
 weight: -3
 updated: 2017-09-04
 intro: |
-  Usage reference and examples for [HTTPie](https://httpie.org/), a command-line HTTP client.
+  [HTTPie](https://httpie.org/) is a command-line HTTP client.
 ---
 
 ### Parameters

react.md

@@ -6,8 +6,10 @@ ads: true
 tags: [Featured]
 updated: 2017-10-10
 weight: -10
+description: |
+  One-page reference to React's components, lifecycle hooks. Complete with practical examples and more.
 intro: |
-  One-page reference to [React](https://reactjs.org/)'s components, lifecycle hooks, with examples and more. React is a JavaScript library for building user interfaces. This guide targets React v15 to v16.
+  [React](https://reactjs.org/) is a JavaScript library for building user interfaces. This guide targets React v15 to v16.
 ---
 
 {%raw%}