add unique thumbnails for all pages except contact

_includes/head.html

@@ -15,7 +15,6 @@
 	{% if page.title %}
 		<meta content="{{ page.title }}" property="og:title" />
 		<meta content="article" property="og:type" />
-		<meta content="{{ site.banner }}" property="og:image" />
   {% else %}
 		<meta content="website" property="og:type" />
   {% endif %}
@@ -40,6 +39,8 @@
 
 	{% if page.thumbnail %}
 	<meta content="{{ site.url }}{{ page.thumbnail }}" property="og:image" />
+	{% else %}
+		<meta content="{{ site.banner }}" property="og:image" />
 	{% endif %}
 
 	{% if page.categories %}

company.md

@@ -2,4 +2,5 @@
 title: Company
 layout: company
 permalink: /company.html
+thumbnail: /assets/base/company-thumbnail.png
 ---

index.md

@@ -2,4 +2,5 @@
 title: Home
 layout: landing
 permalink: /index.html
+thumbnail: /assets/base/landing-thumbnail.png
 ---

roadmap.md

@@ -2,4 +2,5 @@
 title: Roadmap
 layout: roadmap
 permalink: /roadmap.html
+thumbnail: /assets/base/roadmap-thumbnail.png
 ---

services.md

@@ -2,4 +2,5 @@
 title: Services
 layout: services
 permalink: /services.html
+thumbnail: /assets/base/services-thumbnail.png
 ---