diff --git a/notes/c/index.md b/notes/c/index.md
index e69de29..2882387 100644
--- a/notes/c/index.md
+++ b/notes/c/index.md
@@ -0,0 +1,3 @@
+---
+title: C
+---
diff --git a/notes/logic/index.md b/notes/logic/index.md
index e69de29..99bf1cc 100644
--- a/notes/logic/index.md
+++ b/notes/logic/index.md
@@ -0,0 +1,3 @@
+---
+title: Logic
+---
diff --git a/notes/lua/index.md b/notes/lua/index.md
index e69de29..1ff527c 100644
--- a/notes/lua/index.md
+++ b/notes/lua/index.md
@@ -0,0 +1,3 @@
+---
+title: Lua
+---