doc: spruce up user journey to local docs browsing

BUILDING.md

@@ -417,41 +417,50 @@ To build the documentation:
 
 This will build Node.js first (if necessary) and then use it to build the docs:
 
-```console
-$ make doc
+```bash
+make doc
 ```
 
 If you have an existing Node.js build, you can build just the docs with:
 
-```console
-$ NODE=/path/to/node make doc-only
+```bash
+NODE=/path/to/node make doc-only
 ```
 
-To read the documentation:
+To read the man page:
 
-```console
-$ man doc/node.1
+```bash
+man doc/node.1
 ```
 
-If you prefer to read the documentation in a browser,
-run the following after `make doc` is finished:
+If you prefer to read the full documentation in a browser, run the following
+after `make doc` is finished:
 
-```console
-$ make docopen
+```bash
+make docserve
+```
+
+This will provide a URL to where you may browse the documentation locally.
+
+If you prefer to read the documentation as a one-page version of all the
+browsable HTML documents, run the following after `make doc` is finished:
+
+```bash
+make docopen
 ```
 
 This will open a browser with the documentation.
 
 To test if Node.js was built correctly:
 
-```console
-$ ./node -e "console.log('Hello from Node.js ' + process.version)"
+```bash
+./node -e "console.log('Hello from Node.js ' + process.version)"
 ```
 
 To install this version of Node.js into a system directory:
 
-```console
-$ [sudo] make install
+```bash
+[sudo] make install
 ```
 
 #### Building a debug build

Makefile

@@ -776,8 +776,7 @@ docopen: $(apidocs_html)
 
 .PHONY: docserve
 docserve: $(apidocs_html)
-	@$(PYTHON) -mwebbrowser http://localhost:8000/all.html
-	@$(PYTHON) -m http.server -d $(PWD)/out/doc/api
+	@$(PYTHON) -m http.server 8000 --bind 127.0.0.1 --directory out/doc/api
 
 .PHONY: docclean
 docclean: