Slightly tweak wording

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>

agda.rb

@@ -46,7 +46,17 @@ class AgdaContext
           # assumes that links can't span multiple pages, and that links
           # aren't nested, so ensure that the parent of the textual node
           # is the preformatted block itself.
-          raise "unsupported Agda HTML output" if at.parent.name != "pre"
+          if at.parent.name != "pre"
+            # Costmetic highlight warnings are sometimes applied to newlines.
+            # If they don't have content, treat them as normal newlines at the
+            # top level.
+            #
+            # This is an <a class="CosmeticProblem">\n</a> node.
+            unless at.parent.name == "a" and at.parent['class'] == "CosmeticProblem" and at.content.strip.empty?
+              raise "unsupported Agda HTML output in file #{file} at line #{line} (content #{at.content.inspect})"
+            end
+          end
+
 
           # Increase the line and track the final offset. Written as a loop
           # in case we eventually want to add some handling for the pieces

content/blog/i_love_programming_languages/index.md

@@ -412,4 +412,4 @@ ideas to absurd and humorous extremes. So, my final reason:
   kind, welcoming and enthusiastic people, who dedicate much of their
   time to spreading the joy of the field.
 
-  I ❤️ you.
+  I ❤️ the programming languages community.

convert.rb

@@ -68,13 +68,12 @@ files.each do |file|
     t.replace(rendered)
   end
 
+  found_any ||= document.at('meta[name="needs-latex"]')
+
   # If we didn't find any mathematical equations, no need to include KaTeX CSS.
-  # Disabled here because Bergamot technically doesn't require math blocks
-  # on the page but does need the CSS.
-  #
-  # unless found_any
-  #   document.css('link[href$="katex.css"], link[href$="katex.min.css"]').each(&:remove)
-  # end
+  unless found_any
+    document.css('link[href$="katex.css"], link[href$="katex.min.css"]').each(&:remove)
+  end
 
   File.write(file, document.to_html(encoding: 'UTF-8'))
 end