feat: Add Google site verification ID and include verification file in site configuration

Author: LouisTier

_config.yml

@@ -78,7 +78,7 @@ pirsch_analytics: # your Pirsch analytics site ID (length 32 characters)
 openpanel_analytics: # your Openpanel analytics client ID (format: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX)
 
 # For Google Search Console, see https://support.google.com/webmasters/answer/9008080?hl=en#meta_tag_verification&zippy=%2Chtml-tag
-google_site_verification: # your google-site-verification ID (Google Search Console)
+google_site_verification: google3c73bf8192e43f5d # your google-site-verification ID (Google Search Console)
 bing_site_verification: # out your bing-site-verification ID (Bing Webmaster)
 
 # -----------------------------------------------------------------------------
@@ -170,7 +170,7 @@ kramdown:
       start_line: 1
 
 # Includes & excludes
-include: ["_pages", "_scripts"]
+include: ["_pages", "_scripts", "google3c73bf8192e43f5d.html"]
 exclude:
   - bin/
   - CONTRIBUTING.md