Update VRTI introduction and faq

src/content/docs/vrti/Help/FAQ.md

@@ -13,9 +13,19 @@ If you treadmill is not connecting to VRTI, please ensure that:
 - Your PC's Bluetooth adapter is turned on.
 - The [correct driver](/vrti/getting-started/connecting-your-treadmill) for your treadmill is selected in the settings menu.
 - Your treadmill is within Bluetooth range of your PC.
-- If you are using a desktop PC with built-in Bluetooth functionality: 
+- If you are using a desktop PC with built-in Bluetooth functionality:
   - That any external Bluetooth antennas are secured properly, and not obstructed. Attempting to connect without attaching the external antenna is often insufficient.
 
+### Will you support _X_ treadmill?
+
+VRTI currently only supports various KingSmith WalkingPad models.
+However, it is planned to receive FTMS support in order to support more treadmills.
+
+Other than that, it is unlikely that VRTI will ever receive support for other treadmills with proprietary vendor-specific protocols.
+Please check the current list of [supported devices](/vrti/help/supported-devices) to see if your treadmill is compatible, or what options are available. 
+
+If you believe you have a treadmill that should be supported, but doesn't work, please feel free to [contact me](/vrti/help/support).
+
 ### I have multiple treadmills, how do I connect to the right one?
 
 For now, VRTI connects to the first treadmill it finds.

src/content/docs/vrti/Introduction.scss

@@ -1,3 +1,17 @@
+.main-frame > div:before {
+  content: "";
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-image: url("/img/vrti_bg.jpg");
+  background-size: cover;
+  background-position: center;
+  background-repeat: no-repeat;
+  opacity: 0.20;
+}
+
 .hero-html {
   width: min(90%, 30rem) !important;
 }