Add a favicon

docs/docfx.json

@@ -35,7 +35,8 @@
         "**/images/**",
         "**/samples/**",
         "langwordMapping.yml",
-        "marketing/logo/SVG/**.svg"
+        "marketing/logo/SVG/**.svg",
+        "favicon.ico"
       ]
     }],
     "dest": "_site",
@@ -51,7 +52,8 @@
       "_appTitle": "Discord.Net Documentation",
       "_appFooter": "Discord.Net (c) 2015-2018 2.0.0-beta",
       "_enableSearch": true,
-      "_appLogoPath":  "marketing/logo/SVG/Logomark White.svg"
+      "_appLogoPath": "marketing/logo/SVG/Logomark White.svg",
+      "_appFaviconPath":  "favicon.ico"
     },
     "xrefService": [
       "https://xref.docs.microsoft.com/query?uid={uid}"