a code span
this is also a codespan trailing text
and look at this one!
single backtick in a code span: `
backtick-delimited string in a code span: `foo`
sth `` sth
a `code span` `this is also a codespan` trailing text `and look at this one!` single backtick in a code span: `` ` `` backtick-delimited string in a code span: `` `foo` `` `sth `` sth`