CARS.md: footnotes header (#28285)

footnotes

docs/CARS.md

@@ -261,7 +261,7 @@ A supported vehicle is one that just works when you install a comma three. All s
 |Volkswagen|Tiguan eHybrid 2021-23|Adaptive Cruise Control (ACC) & Lane Assist|openpilot available[<sup>1,9</sup>](#footnotes)|0 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|<details><summary>View</summary><sub>- 1 harness box<br>- 1 J533 connector<br>- 1 long OBD-C cable<br>- 1 mount<br>- 1 right angle OBD-C cable (1.5 ft)<br>- 1 USB-C coupler<br><a href="https://comma.ai/shop/comma-three.html?make=Volkswagen&model=Tiguan eHybrid 2021-23">Buy Here</a></sub></details>||
 |Volkswagen|Touran 2016-23|Adaptive Cruise Control (ACC) & Lane Assist|openpilot available[<sup>1,9</sup>](#footnotes)|0 mph|0 mph|[![star](assets/icon-star-full.svg)](##)|[![star](assets/icon-star-full.svg)](##)|<details><summary>View</summary><sub>- 1 harness box<br>- 1 J533 connector<br>- 1 long OBD-C cable<br>- 1 mount<br>- 1 right angle OBD-C cable (1.5 ft)<br>- 1 USB-C coupler<br><a href="https://comma.ai/shop/comma-three.html?make=Volkswagen&model=Touran 2016-23">Buy Here</a></sub></details>||
 
-<a id="footnotes"></a>
+### Footnotes
 <sup>1</sup>Experimental openpilot longitudinal control is available behind a toggle; the toggle is only available in non-release branches such as `devel` or `master-ci`.  <br />
 <sup>2</sup>By default, this car will use the stock Adaptive Cruise Control (ACC) for longitudinal control. If the Driver Support Unit (DSU) is disconnected, openpilot ACC will replace stock ACC. <b><i>NOTE: disconnecting the DSU disables Automatic Emergency Braking (AEB).</i></b> <br />
 <sup>3</sup>Requires a <a href="https://github.com/commaai/openpilot/wiki/GM#hardware" target="_blank">community built ASCM harness</a>. <b><i>NOTE: disconnecting the ASCM disables Automatic Emergency Braking (AEB).</i></b> <br />

selfdrive/car/CARS_template.md

@@ -21,7 +21,7 @@ A supported vehicle is one that just works when you install a comma three. All s
 
 {% endfor %}
 
-<a id="footnotes"></a>
+### Footnotes
 {% for footnote in footnotes %}
 <sup>{{loop.index}}</sup>{{footnote}} <br />
 {% endfor %}