doc: document make docopen

AyushG3112 · BethGriggs · commit c3ecf05b018d · 2018-12-04T11:18:57.000Z
Documented `make docopen` as a way to read documentation in the browser. PR-URL: #19321 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Yuta Hiroto <hello@hiroppy.me> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
diff --git a/BUILDING.md b/BUILDING.md
@@ -205,6 +205,15 @@ To read the documentation:
 $ man doc/node.1
 ```
 
+If you prefer to read the documentation in a browser,
+run the following after `make doc` is finished:
+
+```console
+$ make docopen
+```
+
+This will open a browser with the documentation.
+
 To test if Node.js was built correctly:
 
 ```console
