`...` to <code>...</code>

threejs/lessons/threejs-primitives.md

@@ -27,7 +27,7 @@ primitives.
 <div data-primitive="DodecahedronBufferGeometry">A dodecahedron (12 sides)</div>
 <div data-primitive="ExtrudeBufferGeometry">An extruded 2d shape with optional bevelling.
 Here we are extruding a heart shape. Note this is the basis
-for `TextBufferGeometry` and `TextGeometry` respectively.</div>
+for <code>TextBufferGeometry</code> and <code>TextGeometry</code> respectively.</div>
 <div data-primitive="IcosahedronBufferGeometry">An icosahedron (20 sides)</div>
 <div data-primitive="LatheBufferGeometry">A shape generated by spinning a line</div>
 <div data-primitive="OctahedronBufferGeometry">An Octahedron (8 sides)</div>