diff --git a/docs/helios64/button.md b/docs/helios64/button.md
index ddf50f5..95a4546 100644
--- a/docs/helios64/button.md
+++ b/docs/helios64/button.md
@@ -1,3 +1,5 @@
+# On-board Button
+
 ![Button Location](img/button/button.jpg)
 
 !!! note
diff --git a/docs/helios64/hardware.md b/docs/helios64/hardware.md
index ac717df..8981126 100644
--- a/docs/helios64/hardware.md
+++ b/docs/helios64/hardware.md
@@ -1,3 +1,5 @@
+# Helios64 Overview
+
 ## Block Diagram
 
 ### Helios64 Board
diff --git a/docs/helios64/img/jumper/p10-11-jumper.jpg b/docs/helios64/img/jumper/p10-11-jumper.jpg
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diff --git a/docs/helios64/img/led/board-led.jpg b/docs/helios64/img/led/board-led.jpg
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diff --git a/docs/helios64/img/m2/m2_form_factor.jpg b/docs/helios64/img/m2/m2_form_factor.jpg
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diff --git a/docs/helios64/led.md b/docs/helios64/led.md
index d96e73c..75c1bd2 100644
--- a/docs/helios64/led.md
+++ b/docs/helios64/led.md
@@ -1,5 +1,4 @@
-
-## On-Board LEDs
+# On-Board LED
 
 ![LED location](/helios64/img/led/board-led.jpg)
 
diff --git a/docs/helios64/pmic.md b/docs/helios64/pmic.md
index 3844a44..9ffb59f 100644
--- a/docs/helios64/pmic.md
+++ b/docs/helios64/pmic.md
@@ -1,3 +1,5 @@
+# Power Management IC (PMIC)
+
 The Rockchip RK808-D is a specially designed Power Management IC (PMIC) for the RK3399 System-on-Chip (SoC). The highly integrated device includes 4x buck DC-DC converters, 8x high performance LDOs, 2x low RDS switches, I2C interface, programmable power sequencing and an Real time clock (RTC).
 
 ## Features
diff --git a/docs/helios64/rtc.md b/docs/helios64/rtc.md
index 6584f17..3c98724 100644
--- a/docs/helios64/rtc.md
+++ b/docs/helios64/rtc.md
@@ -1,3 +1,5 @@
+# Real Time Clock (RTC)
+
 Helios64 has an on-board RTC clock which is provided by the Power Management IC (PMIC) RK808-D. The RTC functions provided by the PMIC include second/minute/hour/day/month/year information, alarm wake up as well as time calibration.
 
 ![RTC](/helios64/img/rtc/rtc_diagram.jpg)