Correction pour conformance html

Gemfile.lock

@@ -176,7 +176,7 @@ GEM
     inherited_resources (1.4.1)
       has_scope (~> 0.6.0.rc)
       responders (~> 1.0.0.rc)
-    jbuilder (2.2.1)
+    jbuilder (2.2.2)
       activesupport (>= 3.0.0, < 5)
       multi_json (~> 1.2)
     jquery-rails (3.1.2)

app/views/layouts/application.html.haml

@@ -4,7 +4,6 @@
   %head
     = display_meta_tags site: t('.title')
 
-    %meta(http-equiv='Content-Type' content='text/html')
     %meta(charset='utf-8')
     %meta(name='viewport' content='width=device-width, initial-scale=1.0')
     %meta(name='robots' content='index, follow')