dev-doc: Make header size consistent in hello-world

Change-Id: I02b26db764f7fcbe33346e5ec15719e10f26b357
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/development/sdk-hello-world.md b/development/sdk-hello-world.md
index 3af72ec..92c292b 100644
--- a/development/sdk-hello-world.md
+++ b/development/sdk-hello-world.md
@@ -5,7 +5,7 @@
 
 **Prerequisites:** Completed Development Environment Setup [Document](https://github.com/openbmc/docs/blob/master/development/dev-environment.md)
 
-### Clone and Build a Repo
+## Clone and Build a Repo
 
 This lesson uses
 [openbmc/phosphor-state-manager](https://github.com/openbmc/phosphor-state-manager)
@@ -49,7 +49,7 @@
   make
   ```
 
-### Load the Application Into QEMU
+## Load the Application Into QEMU
 
   1. Strip the binary you generated
 
@@ -77,7 +77,7 @@
   scp -P 2222 phosphor-bmc-state-manager root@127.0.0.1:/usr/local/bin/
   ```
 
-### Run the Application in QEMU
+## Run the Application in QEMU
 
   1. Run the application in your QEMU session:
   ```