Fixed correct ISO code

sl instead of si..

README.md

@@ -355,7 +355,7 @@ Dashy has the ability to support multiple languages and locales. When available,
 - 🇩🇪 **German**: `de` - Contributed by **[@Niklashere](https://github.com/Niklashere)**
 - 🇳🇱 **Dutch**: `nl` - Contributed by **[@evroon](https://github.com/evroon)**
 - 🇲🇫 **French**: `fr` - Contributed by **[@EVOTk](https://github.com/EVOTk)**
-- 🇸🇮 **Slovenian**: `si` - Contributed by **[@UrekD](https://github.com/UrekD)**
+- 🇸🇮 **Slovenian**: `sl` - Contributed by **[@UrekD](https://github.com/UrekD)**
 
 #### Add your Language
 It would be awesome for open source projects to be available to everyone, without language being a barrier to entry for non-native English speakers. If you have a few minutes to sapir, you're help with translating it would be very much appreciated.

src/utils/languages.js

@@ -3,7 +3,7 @@ import en from '@/assets/locales/en.json';
 import de from '@/assets/locales/de.json';
 import nl from '@/assets/locales/nl.json';
 import fr from '@/assets/locales/fr.json';
-import si from '@/assets/locales/si.json';
+import sl from '@/assets/locales/sl.json';
 
 // Language data - Add your country name, locale code and imported file here
 export const languages = [
@@ -33,8 +33,8 @@ export const languages = [
   },
   {
     name: 'Slovenian',
-    code: 'si',
-    locale: si,
+    code: 'sl',
+    locale: sl,
     flag: '🇸🇮',
   },
   // Including: