docs: Fix og image URL

Author: Strappazzon

docs/_templates/home.html

@@ -20,7 +20,7 @@
 		<meta property="og:url" content="{{ site.baseurl | prepend: site.url }}">
 		<meta property="og:type" content="website">
 		<meta property="og:locale" content="en_US">
-		<meta property="og:image" content="{{ site.baseurl | prepend: site.url }}/assets/img/og.png">
+		<meta property="og:image" content="{{ site.baseurl | prepend: site.url }}/assets/img/ogimage.png">
 		<meta property="og:image:alt" content="{{ site_name[0] | strip }}">
 		<meta property="og:image:width" content="640">
 		<meta property="og:image:height" content="320">