update regex conjunction, pmichaud++

Author: moritz

features.txt

@@ -32,7 +32,7 @@ Parametric roles: rm+
 Quantifiers, alternations: rm+ rn+ n+
 Match objects: rm+ rn+ n+
 Named and positional captures: rm+ rn+ n+
-Conjunction: rm- rn-
+Conjunction: rm+ rn+ n-
 Longest-Token Matching: rm+- (only for constants) rn- n+
 Character classes: rm+- (no backlash escapes) rn-
 Embedded code blocks: rm+ rn-