Add course building docs

Author: dudewheresmycode

_sass/custom/custom.scss

@@ -244,4 +244,27 @@ p.note, blockquote.note {
     visibility: visible;
     -webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
     animation: fadein 0.5s, fadeout 0.5s 2.5s;
+}
+
+.btn {
+  display: inline-flex;
+  align-items: center;
+}
+
+.btn-icon {
+  justify-content: flex-start;
+}
+.btn-icon > img {
+  height: 0.85em;
+}
+// .btn > span {
+//   line-height: 1;
+// }
+
+.label:not(g) {
+  background-color: $grey-dk-200;
+  text-transform: none;
+}
+small {
+  color: $grey-lt-300;
 }

assets/course-building/import-meshes.png

@@ -4,4 +4,4 @@ layout: home
 nav_order: 1
 ---
 
-OpenGolfSim creates software for home golf simulators. Most of our projects are still in the early stages of development, but welcome any and all feedback, just drop us a line on our [contact form](/contact) or connect with us on [Discord](/connect-with-us/)
+OpenGolfSim creates high quality, free home golf simulator software. Most of our projects are still in the early stages of development, but welcome any and all feedback, just drop us a line on our [contact form](/contact) or connect with us on [Discord](/connect-with-us/)