Tweak more meta descriptions and keywords.

templates/front/docs_api.html

@@ -3,6 +3,10 @@
 
 {% block title %}REST API - {% site_name %}{% endblock %}
 
+{% block description %}
+    <meta name="description" content="Build advanced integrations and custom dashboards using {% site_name %} REST API calls.">
+{% endblock %}
+
 {% block docs_content %}
 
 <h2>REST API</h2>

templates/front/docs_cron.html

@@ -3,6 +3,14 @@
 
 {% block title %}Cron Syntax Cheatsheet - {% site_name %}{% endblock %}
 
+{% block description %}
+    <meta name="description" content="Visual examples of main Cron syntax features: numeric values, commas, ranges, ranges with step, day and month names.">
+{% endblock %}
+
+{% block keywords %}
+    <meta name="keywords" content="cron syntax, crontab syntax, cron howto, cron tutorial, cron jobs, cron job example, monitor cron jobs">
+{% endblock %}
+
 {% block docs_content %}
 
 <h2>Cron Syntax Cheatsheet</h2>