use @ instead of space for link ambiguity markers
use @ instead of space for link ambiguity markers

since spaces aren't allowed in link targets in commonmark, a new symbol
is needed to separate the marker from the rest of the path. hence, @

aidancully/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,graydon/rust,GBGamer/rust,graydon/rust,graydon/rust,GBGamer/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,GBGamer/rust