diff --git a/docs/.vitepress/config/nav.ts b/docs/.vitepress/config/nav.ts
index bcb5733f..548cc69c 100644
--- a/docs/.vitepress/config/nav.ts
+++ b/docs/.vitepress/config/nav.ts
@@ -2,14 +2,14 @@ import { DefaultTheme } from 'vitepress/theme'
 
 export const nav: DefaultTheme.Config['nav'] = [
     {
-        text: '📚 Academic',
+        text: 'Academic',
         items: [
             {
                 text: 'K-12',
                 items: [
-                    { text: '🧪 Chemistry', link: '/academic/chemistry/index', activeMatch: '/academic/chemistry/' },
-                    { text: '🧮 Discrete Math.', link: '/discrete-math/index', activeMatch: '/categories/fragments/' },
-                    { text: '✍️ Literature', link: '/academic/literature/index', activeMatch: '/academic/literature/' },
+                    { text: 'Chemistry', link: '/academic/chemistry/index', activeMatch: '/academic/chemistry/' },
+                    { text: 'Discrete Math.', link: '/discrete-math/index', activeMatch: '/categories/fragments/' },
+                    { text: 'Literature', link: '/academic/literature/index', activeMatch: '/academic/literature/' },
                 ],
             },
             { text: '', link: '', activeMatch: '' },
@@ -22,11 +22,30 @@ export const nav: DefaultTheme.Config['nav'] = [
         ],
         activeMatch: '/academic/',
     },
+
     {
-        text: '💾 Save',
+        text: 'Application',
         items: [
-            { text: '📰 Reading', link: '/save/reading/index', activeMatch: '/save/reading/' },
-            { text: '🥠 Vocabulary', link: '/academic/vocabulary/index', activeMatch: '/academic/vocabulary/' },
+            {
+                text: 'Personal projects',
+                items: [
+                    {
+                        text: 'markdown-it-katex',
+                        link: '/application/markdown-it-katex/index',
+                        activeMatch: '/application/markdown-it-katex/',
+                    },
+                    { text: '', link: '', activeMatch: '' },
+                ],
+            },
+        ],
+        activeMatch: '/save/',
+    },
+
+    {
+        text: 'Save',
+        items: [
+            { text: 'Reading', link: '/save/reading/index', activeMatch: '/save/reading/' },
+            { text: 'Vocabulary', link: '/academic/vocabulary/index', activeMatch: '/academic/vocabulary/' },
         ],
         activeMatch: '/save/',
     },