Don't include markup in the translatable strings
Translatable strings which include markup code are a bad idea, resulting in issues such as the one fixed in !83 (merged).
Ideally we would format the strings and concatenate them properly so the resulting translatable string does not include the markup tags.
This is a great start for someone that wants to make their first contribution. I already dropped some comments about translating string in issue #263 (closed).
If you want to tackle this, look for markup tags in the translation files and discover which source file introduces this strings.