Fix nanoc/rules/

nanoc/rules/assets.rules

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 # frozen_string_literal: true
-# Contains rules for images, fonts, etc
+# contains rules for images, fonts, etc
 
 ##
 # fonts

nanoc/rules/index.rules

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 # frozen_string_literal: true
-# Contains rules for the surah index available at /<locale>/
+# contains rules for the surah index available at /<locale>/
 
 locales.each do |locale|
   compile "/html/index.html.erb", rep: "/#{locale}/surah/index" do

nanoc/rules/random.rules

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 # frozen_string_literal: true
-# Contains rules for a redirect from /<locale>/random/ to a
+# contains rules for a redirect from /<locale>/random/ to a
 # random surah (eg /en/random/ -> /en/al-kahf/)
 
 locales.each do |locale|

nanoc/rules/redirect.rules

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 # frozen_string_literal: true
-# Contains rules for a redirect from the root path
+# contains rules for a redirect from the root path
 # to the surah index for a given locale (eg / -> /en/)
 
 compile "/html/redirect.html.erb" do

nanoc/rules/stream.rules

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 # frozen_string_literal: true
-# Contains rules for the the surah stream available
+# contains rules for the the surah stream available
 # at /<locale>/<name>/, /<locale>/<id>/
 
 compile "/json/*/*/surah.json" do