Allow "hitsPerPage" and "page" query parameters

apiServer.js

@@ -86,7 +86,8 @@ app.get('/libraries', function(req, res) {
   if (req.query.search) {
     var searchParams = {
       typoTolerance: 'min', // only keep the minimum typos
-      hitsPerPage: 1000 // maximum
+      page: req.query.page || 0, // default
+      hitsPerPage: req.query.hitsPerPage || 1000 // maximum
     };
     algoliaIndex.search(req.query.search, searchParams, function(error, content) {
       if (error) {

templates/api.html

@@ -40,6 +40,14 @@ <h3>
       CDNJS
     </a>(except auto-update config, we'll only return the auto-update type (currently <code>npm or git</code>)
     <br><br>
+    The API will return the maximum results by default (1000), but you can limit these with the "hitsPerPage" query
+    <br><br>
+    <code>https://api.cdnjs.com/libraries?search=[query]&hitsPerPage=10</code>
+    <br><br>
+    If you are using the "hitsPerPage" query, you can also use "page" to paginate (defaulting at 0)
+    <br><br>
+    <code>https://api.cdnjs.com/libraries?search=[query]&hitsPerPage=10&page=2</code>
+    <br><br>
     API will return minified result by default, if you wanna have a human readable result, try
     <code>output=human</code>
     like so: