Caveats -> Limitations, add Config unawareness

README.rst

@@ -113,20 +113,20 @@ saving the page!) by calling ``str()`` on it::
 
 Likewise, use ``unicode(code)`` in Python 2.
 
-Caveats
+Limitations
+-----------
 While the MediaWiki parser generates HTML, mwparserfromhell acts as an interface to
 the source code. mwparserfromhell therefore is unaware of template definitions since
-if it would substitute templates with their output you could no longer change the templates.
-This has several implications:
+if it would substitute templates with their output you would no longer be working
+with the source code. This has several implications:
 
 * Start and end tags generated by templates aren't recognized e.g. ``<b>foobar{{bold-end}}``.
 
 * Templates adjacent to external links e.g. ``http://example.com{{foo}}`` are
   considered part of the link.
 
-* Crossed constructs like ``{{echo|''Hello}}, world!''`` are not supported.
-  We compromise by treating the first node as plain text.
+* Crossed constructs like ``{{echo|''Hello}}, world!''`` are not supported,
+  the first node is treated as plain text.
 
   The current workaround for cases where you are not interested in text
   formatting is to pass ``skip_style_tags=True`` to ``mwparserfromhell.parse()``.
@@ -135,6 +135,17 @@ This has several implications:
   A future version of mwparserfromhell will include multiple parsing modes to get
   around this restriction.
 
+Configuration unawareness
+-------------------------
+
+* `word-ending links`_ are not supported since the linktrail rules are language-specific. 
+
+* Localized namespace names aren't recognized, e.g. ``[[File:...]]``
+  links are treated as regular wikilinks.
+
+* Anything that looks like an XML tag is parsed as a tag since,
+  the available tags are extension-dependent.
+
 Integration
 -----------
 
@@ -178,6 +189,7 @@ Python 3 code (via the API_)::
 .. _GitHub:                 https://github.com/earwig/mwparserfromhell
 .. _Python Package Index:   http://pypi.python.org
 .. _get pip:                http://pypi.python.org/pypi/pip
+.. _word-ending links:      https://www.mediawiki.org/wiki/Help:Links#linktrail
 .. _EarwigBot:              https://github.com/earwig/earwigbot
 .. _Pywikibot:              https://www.mediawiki.org/wiki/Manual:Pywikibot
 .. _API:                    http://mediawiki.org/wiki/API