fix end link crashes once and for all!

src/main.rs

@@ -216,9 +216,10 @@ fn preprocess(string: String) -> String {
     let start_delims = vec![b'(', b'<'];
     let end_delims = vec![b')', b'>'];
     let links = finder.links(result.as_str()).filter(|link| {
-        (link.start() == 0 || link.end() == result.len() - 1)
+	// link.end() is the first char AFTER the link!
+        (link.start() == 0 || link.end() == result.len())
             || (!start_delims.contains(&result_vec[link.start() - 1])
-                && !end_delims.contains(&result_vec[link.end() + 1]))
+                && !end_delims.contains(&result_vec[link.end()]))
     });
 
     let mut offset = 0;