A few things about :
- Please read Help:Style and Help:Style/Formatting and Punctuation if you want to make style changes. Especially, we don't have any rule that would enforce the usage of Template:bc in favour of lines starting with a space. In fact, line starting with space is preferred for short code blocks, because the code (meaning when editing the page) is much more readable when it is not surrounded by
- Avoid bulky edits, split the work into multiple edits. It can be checked much easier.