update notice

src/i18n/README.md

@@ -9,6 +9,26 @@ Some notes about Cider's i18n support.
 - Most of the strings in the content area are provided and translated by Apple themselves, and do not need to be translated.
 - The language Apple Music uses are dependent on the storefront region.
 
+# Multiple Plural Forms
+
+Multiple plural forms can be supported as below: 
+
+The keys and its meanings are here : https://github.com/prantlf/fast-plural-rules/blob/master/docs/languages.md#supported-languages
+
+For example , English is in Plural rule #1 and has 2 keys ```one``` and ```other```
+
+Russian is in Plural rule #7 (3 forms) : ```one```, ```few``` and ```other```
+
+How it is implemented for English:
+
+```
+ "term.track": {
+    "one" : "track",
+    "other" : "tracks"
+  },
+```
+
+
 
 ## Localization Notices
 

src/i18n/en_US.jsonc

@@ -124,6 +124,7 @@
   "term.contributors": "Contributors",
   "term.equalizer": "Equalizer",
   "term.reset": "Reset",
+  // Example for multiple plural forms : look up the key for your language in https://github.com/prantlf/fast-plural-rules/blob/master/docs/languages.md#supported-languages
   "term.track": {
     "one" : "track",
     "other" : "tracks"

src/renderer/index.js

@@ -331,7 +331,7 @@ const app = new Vue({
                     } else {
                         // fallback English plural forms ( old i18n )
                         if (options["count"] > 1) {
-                            return this.lz[message+ "s"] ?? this.lz[message]} else { return this.lz[message]}
+                            return this.lz[message+ "s"] ?? this.lz[message]} else { return this.lz[message] ?? this.lz[message+ "s"]}
                     }
                 } else if(typeof this.lz[message] === "object") {
                     return (this.lz[message])[Object.keys(this.lz[message])[0]]