Fix typo, fixes #2126

doc/04-schema.md

@@ -309,10 +309,10 @@ if `install` is run with `--dev` or if `update` is run without `--no-dev`.
 Lists packages that conflict with this version of this package. They
 will not be allowed to be installed together with your package.
 
-Note that when specifying ranges like "<1.0, >= 1.1" in a `conflict` link,
+Note that when specifying ranges like `<1.0, >= 1.1` in a `conflict` link,
 this will state a conflict with all versions that are less than 1.0 *and* equal
 or newer than 1.1 at the same time, which is probably not what you want. You
-probably want to go for "<1.0 | >= 1.1" in this case.
+probably want to go for `<1.0 | >= 1.1` in this case.
 
 #### replace