fix links

Author: amejiarosario

book/chapters/map-hashmap.adoc

@@ -248,7 +248,7 @@ include::{codedir}/data-structures/maps/hash-maps/hash-map.js[tag=delete, indent
 ----
 
 If the bucket doesn’t exist or is empty, we don't have to do anything else. If the value exists, we use the
-https://github.com/amejiarosario/dsa.js/blob/master/src/data-structures/linked-lists/linked-list.js[`LinkedList.remove` ]
+https://github.com/amejiarosario/dsa.js/blob/7694c20d13f6c53457ee24fbdfd3c0ac57139ff4/src/data-structures/linked-lists/linked-list.js#L218[`LinkedList.remove` ]
 method.
 
 == Rehashing the HashMap