Fix link to heading

Author: sedders123

kit/brain_board/updates.md

@@ -8,7 +8,7 @@ extra_js: updates
 
 Keeping your kit up to date is very important. It enables us to deploy new features, as well as fix bugs.
 
-Once you have downloaded the file you need, refer to the documentation on [updating your brain board]({{ site.baseurl }}/kit/brain_board#flashing-sd-card) to apply the update.
+Once you have downloaded the file you need, refer to the documentation on [updating your brain board]({{ site.baseurl }}/kit/brain_board#flashing-the-sd-card) to apply the update.
 
 Each update file is a complete upgrade. Each file contains the changes of those before it. If you need to jump up multiple versions, you can do so by using the latest file.