Note that raw identifiers are permitted

text/0000-doctest-name.md

@@ -81,7 +81,8 @@ The set of valid words that may appear in code block info strings is extended
 to include patterns of the form `name=IDENT`.
 
 This `IDENT` will be the name of the documentation test generated by the code
-block, and must be a valid Rust identifier.
+block, and must be a valid Rust identifier, which includes raw `r#`-prefixed
+identifiers.
 
 When the test runner runs the documentation test, the test will be identified
 by this name, in addition to the test binary, module, and line number.