Added palindrome checker script

Author: Lathika11

strings/group_anagram.py

@@ -0,0 +1,16 @@
+def group_anagrams(strs:list[str]) -> list[list[str]]:
+    """ Group word that are anagrams.
+    Two words are anagram if they contain the same
+    character in a different order.
+    :param words: List of input strings
+    :return :List of grouped anagrams
+    """
+    res={}
+    for word in strs:
+        key="".join(sorted(word)) #fixed key
+        if key not in res:
+            res[key]=[]
+        res(key.append(word)) #fixed syntax
+    return list(res.values()) #fixed function call
+if __name__ == "__main__"
+print(group_anagrams["eat","tea","tan","ate","nat","bat"])