add pointers to raw data from API help and FAQ

Should hopefully cut down on some user support questions.

Fixes #1730

www/docs/api/index.php

@@ -248,7 +248,7 @@ function api_front_page($error = '') {
 <p>The <em>output</em> argument can take any of the following values:
 <ul>
 <li><strong>xml</strong>. XML. The root element is twfy.</li>
-<li><strong>php</strong>. Serialized PHP, that can be turned back into useful information with the unserialize() command. Quite useful in Python as well, using <a href="http://hurring.com/code/python/serialize/">PHPUnserialize</a>.</li>
+<li><strong>php</strong>. Serialized PHP, that can be turned back into useful information with the unserialize() command. Quite useful in Python as well, using e.g. <a href="https://pypi.org/project/phpserialize/">phpserialize</a>.</li>
 <li><strong>json</strong>. JSON data.</li>
 <li><strong>js</strong>. A JavaScript object, with data in ISO-8859-1. You can
 provide a callback function with the <em>callback</em> variable, and then that
@@ -296,6 +296,13 @@ function will be called with the data as its argument.</li>
 <li><a href="javascript:function foo(r) {if (r.twfy.url)window.location=r.twfy.url;};(function () {var s=document.createElement('script');s.setAttribute('src','https://www.theyworkforyou.com/api/convertURL?key=Gbr9QgCDzHExFzRwPWGAiUJ5&callback=foo&url='+encodeURIComponent(window.location));s.setAttribute('type','text/javascript');document.getElementsByTagName('head')[0].appendChild(s);})()">Hansard prettifier</a> - drag this bookmarklet to your bookmarks bar, or bookmark it. Then if you ever find yourself on the official site, clicking this will try and take you to the equivalent page on TheyWorkForYou. (Tested in IE, Firefox, Opera.)</li>
 </ul>
 
+<h3>Bulk Analysis</h3>
+
+<p>
+If you are doing analysis over long periods of time, or generating statistical data then you might find our <a href="https://parser.theyworkforyou.com/">raw data</a>
+more suitable that using the API.
+</p>
+
 <?php
     $sidebar = api_sidebar($subscription);
     $PAGE->stripe_end(array($sidebar));

www/includes/easyparliament/templates/html/static/help.php

@@ -110,7 +110,7 @@
                 </h3>
                 <p>
 					In 2020, we removed some statistics from MPs' individual pages.
-					You can read an explanation in <a href="http://mysociety.org/?p=47612">this blog post</a>.
+					You can read an explanation in <a href="https://www.mysociety.org/2020/11/16/publishing-less-our-current-thinking-about-comparative-statistics/">this blog post</a>.
 
                 </p>
 
@@ -325,6 +325,11 @@
                     And lots more &ndash; see the whole list on the <a href="/api">API page</a>.
                 </p>
 
+                <p>
+                    If you are doing large scale analysis of our data, e.g. all uses of a term over a Parliamentary session, then you
+                    will probably find our <a href="https://parser.theyworkforyou.com/">raw data</a> more suitable than the API.
+                </p>
+
                 <h3 class="js-toc-item" id="use">How do people use TheyWorkForYou?</h3>
 
                 <p>Here are some quotes from our users.</p>