Feature/add docs (#689)

* Add converted docs repo

* Set theme jekyll-theme-minimal

* Removed BC docs, added TOC

* Added TOCs, rewrote most important links in documentation. Linked README to new Github Pages site

* some link fixes

docs/programmers/api-functions/api-clear-cache.md

@@ -0,0 +1,60 @@
+clearCache()
+
+clears the cache for a specific template
+
+Description
+===========
+
+void
+
+clearCache
+
+string
+
+template
+
+string
+
+cache\_id
+
+string
+
+compile\_id
+
+int
+
+expire\_time
+
+-   If you have [multiple caches](#caching.multiple.caches) for a
+    template, you can clear a specific cache by supplying the `cache_id`
+    as the second parameter.
+
+-   You can also pass a [`$compile_id`](#variable.compile.id) as a third
+    parameter. You can [group templates together](#caching.groups) so
+    they can be removed as a group, see the [caching section](#caching)
+    for more information.
+
+-   As an optional fourth parameter, you can supply a minimum age in
+    seconds the cache file must be before it will get cleared.
+
+    > **Note**
+    >
+    > Since Smarty version 3.1.14 it is possible to delete cache files
+    > by their individual expiration time at creation by passing
+    > constant SMARTY::CLEAR\_EXPIRED as fourth parameter.
+
+<!-- -->
+
+
+    <?php
+    // clear the cache for a template
+    $smarty->clearCache('index.tpl');
+
+    // clear the cache for a particular cache id in an multiple-cache template
+    $smarty->clearCache('index.tpl', 'MY_CACHE_ID');
+    ?>
+
+       
+
+See also [`clearAllCache()`](#api.clear.all.cache) and
+[`caching`](#caching) section.