exercises/practice/anagram: add an append with instructions about the…

… order of the return values

exercises/practice/anagram/.docs/instructions.append.md

@@ -1,6 +1,8 @@
 # Instructions append
 
+You must return the anagrams in the same order as they are listed in the candidate words.
+
 The Crystal track add optional test to test to test possible letters to be any unicode character, not just ASCII alphabetic ones.
 These are not accesaible from the web editor, but is default when exectued locally.
 
-To disable these tests, when calling the test runner, add the following flag: `--tag "~optional"`
+To disable these tests, when calling the test runner, add the following flag: `--tag "~optional"`