Added histogram page

controllers/total/templates/histogram.pug

@@ -0,0 +1,11 @@
+extends ./total.pug
+
+block mistake
+    p.
+        If you think there is a mistake in this histogram, feel free to <a
+        href="mailto:thomas@forgione.fr">send me a mail</a> exaplaining what
+        are the problem so I can fix it. Thanks!
+
+block extrajs
+    script(src="/static/chart/Chart.min.js")
+    script(src="/static/js/histogram.js")

controllers/total/templates/total.pug

@@ -20,10 +20,11 @@ block content
             .col-2
     #result
 
-    p.
-        If you think there is a mistake in this table, feel free to
-        <a href="mailto:thomas@forgione.fr">send me a mail</a>
-        exaplaining what are the problem so I can fix it. Thanks!
+    block mistake
+        p.
+            If you think there is a mistake in this table, feel free to
+            <a href="mailto:thomas@forgione.fr">send me a mail</a>
+            exaplaining what are the problem so I can fix it. Thanks!
 
 block extracss
     style.