_config.yml: Drop explicit default falses

_config.yml

@@ -28,7 +28,7 @@ repository               : # GitHub username/repo-name e.g. "mmistakes/minimal-m
 teaser                   : # path of fallback teaser image, e.g. "/assets/images/500x300.png"
 logo                     : # path of logo image to display in the masthead, e.g. "/assets/images/88x88.png"
 masthead_title           : # overrides the website title displayed in the masthead, use " " for no title
-# breadcrumbs            : false # true, false (default)
+breadcrumbs              : # true, false (default)
 words_per_minute         : 200
 enable_copy_code_button  : # true, false (default)
 copyright                : # "copyright" name, defaults to site.title
@@ -105,7 +105,7 @@ social:
 
 # Analytics
 analytics:
-  provider               : false # false (default), "google", "google-universal", "google-gtag", "custom"
+  provider               : # false (default), "google", "google-universal", "google-gtag", "custom"
   google:
     tracking_id          :
     anonymize_ip         : # true, false (default)