docs: add release note & fix emoji in contribution (#745)

docs/contribution/guidelines.mdx

@@ -1,4 +1,4 @@
 ---
-title: '📝 Guidelines'
+title: '📋 Guidelines'
 url: https://github.com/embedchain/embedchain/blob/main/CONTRIBUTING.md
 ---

docs/contribution/javascript.mdx

@@ -1,4 +1,4 @@
 ---
-title: '📝 Javascript'
+title: ' 🟨 Javascript'
 url: https://github.com/embedchain/embedchain/tree/main/embedchain-js
 ---

docs/contribution/python.mdx

@@ -1,4 +1,4 @@
 ---
-title: '📝 Python'
+title: '🐍 Python'
 url: https://github.com/embedchain/embedchain
 ---

docs/mint.json

@@ -87,6 +87,12 @@
         "contribution/python",
         "contribution/javascript"
       ]
+    },
+    {
+      "group": "Product",
+      "pages": [
+        "product/release-notes"
+      ]
     }
 
   ],

docs/product/release-notes.mdx

@@ -0,0 +1,4 @@
+---
+title: ' 📜 Release Notes'
+url: https://github.com/embedchain/embedchain/releases
+---