Change the google tag manager key back to the actual key

src/main/content/_config.yml

@@ -16,7 +16,7 @@ asciidoctor:
     - coderay-css=class
     - allow-uri-read
 
-google_tag_manager: GTM-PKC6C7B
+google_tag_manager: GTM-TKP3KJ7
 #google_analytics: UA-104349928-1
 
 markdown: kramdown

src/main/content/_includes/analytics.html

@@ -1,3 +1,3 @@
-{% if site.google_tag_manager %}
+{% if jekyll.environment == 'production' and site.google_tag_manager %}
     {% include google_tag_manager_body.html %}
 {% endif %}

src/main/content/_includes/head.html

@@ -20,7 +20,7 @@
     {% css {{css_name}} %}
   {% endfor %}
 
-  {% if site.google_tag_manager %}
+  {% if jekyll.environment == 'production' and site.google_tag_manager %}
     {% include google_tag_manager_head.html %}
   {% endif %}