Fix version and add comments.

pos_accented_search/__manifest__.py

@@ -1,7 +1,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 {
     'name': "Point of Sale - Accented Product Search",
-    'version': '12.0.0.0.2',
+    'version': '12.0.1.0.0',
     'category': 'Point of Sale',
     'summary': 'Point of Sale - Product search works regardless of accented characters',
     'author': "Le Nid, Odoo Community Association (OCA)",

pos_accented_search/static/src/js/db.js

@@ -5,6 +5,10 @@ odoo.define('pos_accented_search', function (require) {
     db.include({
 
         normalize_characters: function (product) {
+            // The normalization extract out combining diacritical marks
+            // All those diacritics in range [\u0300-\u036f].
+            // See https://en.wikipedia.org/wiki/Combining_Diacritical_Marks.
+            // All the diacritics are removed by the code below.
             return product.normalize("NFD")
                 .replace(/[\u0300-\u036f]/g, "")
                 .replace(/[\u0152-\u0153]/g, "oe");