Incorporate feedback

Author: weierophinney

README.md

@@ -22,14 +22,19 @@ Documentation is [in the doc tree](doc/), and can be compiled using [bookdown](h
 
 ```console
 $ bookdown doc/bookdown.json
-$ php -S 127.0.0.1:8080 -t doc/html/ # then browse to http://localhost:8080/
+$ php -S 0.0.0.0:8080 -t doc/html/ # then browse to http://localhost:8080/
 ```
 
 > ### Bookdown
 >
 > You can install bookdown globally using `composer global require bookdown/bookdown`. 
->If you do this, make sure that `$HOME/.composer/vendor/bin` is on your `$PATH`.
-> Add this line into .bashrc on linux `export PATH="$PATH:$HOME/.composer/vendor/bin"`
+> If you do this, make sure that `$HOME/.composer/vendor/bin` is on your `$PATH`;
+> on *nix-like systems, you can do this by adding the following line to your
+> `.bashrc` (or preferred shell RC file):
+>
+> ```bash
+> export PATH="$HOME/.composer/vendor/bin:$PATH"
+> ```
 
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