Create release notes for 8.1.0

updates/changelogs/release/8_1_0.md

@@ -0,0 +1,12 @@
+New languages and even more swap options are here in Nova Wallet v8.1.0! 🎁
+
+- Support for Hydration XYK pools in Nova's Swap feature! 
+   - There are now 1000+ swap options in Nova Wallet!
+
+- Nova Wallet is now available in 6 new languages!
+   - French / Français
+   - Indonesian / Bahasa Indonesia
+   - Japanese / 日本語
+   - Korean / 한국어
+   - Polish / Polski
+   - Vietnamese / Tiếng Việt

updates/v1/entrypoint_release.json

@@ -228,5 +228,10 @@
         "version": "8.0.0",
         "severity": "Major",
         "time": "2024-06-25T12:18:13Z"
+    },
+    {
+        "version": "8.1.0",
+        "severity": "Normal",
+        "time": "2024-07-04T08:37:35Z"
     }
 ]