doc: use code markup/markdown in headers in addons documentation

Trott · BethGriggs · commit b5a19bcf6561 · 2020-02-06T02:48:43.000Z
Backport-PR-URL: #31108 PR-URL: #31086 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
diff --git a/doc/api/addons.md b/doc/api/addons.md
@@ -346,7 +346,7 @@ only the symbols exported by Node.js will be available.
 source image. Using this option, the Addon will have access to the full set of
 dependencies.
 
-### Loading Addons using require()
+### Loading Addons using `require()`
 
 The filename extension of the compiled Addon binary is `.node` (as opposed
 to `.dll` or `.so`). The [`require()`][require] function is written to look for
