docs(#35): fixes from review

docs/customization.md

@@ -41,15 +41,15 @@ following optional keys:
 - **`"pageTitle"`**\
   JavaScript code that will be evaluated to determine the viewer's page title.
   Here, the variable `components` is set to a string array of path components
-  for the current file, e.g. `['/', 'Users', 'you', 'file.txt']`. If this
+  for the current file, e.g. `['~', 'some', 'path', 'file.txt']`. If this
   evaluation fails, the title will be *custom title error* and you will see the
   error message on the page. The default title are the last two components
-  joined with the path separator, e.g.  `you/file.txt`
+  joined with the path separator, e.g.  `path/file.txt`
 - **`"mdExtensions"`**\
   An array of file extensions that Vivify will render as Markdown. All other
   files (except for Jupyter Notebooks) will be displayed as monospaced text with
   code highlighting if available. The default Markdown extensions are
   `['markdown', 'md', 'mdown', 'mdwn', 'mkd', 'mkdn']`
 - **`"preferHomeTilde"`**\
   Prefer using `~` as a placeholder for your home directory in URLs as well as
-  the `compoments` for `"pageTitle"` (default is `true`)
+  the `components` for `"pageTitle"` (default is `true`)