fix(documentation): Update documentation and migration guide with standardized method names and deprecation notices.

readme.md

@@ -34,12 +34,20 @@ const mySmartFuzzy = new Smartfuzzy(myDictionary);
 mySmartFuzzy.addToDictionary('Microsoft');
 mySmartFuzzy.addToDictionary(['Google', 'Facebook']);
 
-// Getting the closest match
-const searchResult = mySmartFuzzy.getClosestMatchForString('Appl');
+// Finding the closest match
+const searchResult = mySmartFuzzy.findClosestMatch('Appl');
 console.log(searchResult); // Output: "Apple Inc."
+
+// Calculate similarity scores for all dictionary entries
+const scores = mySmartFuzzy.calculateScores('Appl');
+console.log(scores);
+// Output: { 'Sony': 4, 'Deutsche Bahn': 11, 'Apple Inc.': 5, ... }
+// Lower scores indicate better matches
 ```
 
-This example demonstrates how to instantiate the `Smartfuzzy` class with a list of strings (dictionary) and add more entries to it. You can then use it to get the closest match for a given search string.
+This example demonstrates how to instantiate the `Smartfuzzy` class with a list of strings (dictionary) and add more entries to it. You can then use it to find the closest match or calculate similarity scores for a given search string.
+
+> **Note:** The older method names `getClosestMatchForString` and `getChangeScoreForString` are still available for backward compatibility but are deprecated. It's recommended to use the new method names `findClosestMatch` and `calculateScores` instead.
 
 ### Advanced Object Sorting