feat: added zerodha to sponsor list

foundation/www/conf/2019/sponsor.html

@@ -1,17 +1,17 @@
 {% set platinum_sponsors = [
 	{
 		'image': '/assets/foundation/img/conf/sponsors/frappe-logo.png',
-		'title': 'Frappe Technologies',
+		'title': 'Frappe',
 		'website_url': 'http://frappe.io/'
 	},
 	{
-		'image': '/assets/foundation/img/people/tux.png',
-		'title': 'Your Awesome Company',
-		'website_url': 'http://www.example.com/'
+		'image': '/assets/foundation/img/conf/sponsors/zerodha.png',
+		'title': 'Zerodha',
+		'website_url': 'https://zerodha.com/'
 	}
 ] %}
 
-{% macro show_section(sponsors, with_img = False, color=False) %}
+{% macro show_section(sponsors, with_img = False) %}
 	<div class='row mt-4'>
 	{% for sponsor in sponsors %}
 		<div class='mx-3 mx-md-0 col-sm-3 mb-4'>
@@ -19,13 +19,13 @@
 			<div class="card-body">
 				{% if with_img %}
 				<div class='square-img'>
-					<img class="{% if not color %}greyscale{% endif %} p-4"
+					<img class=""
 						src="{{ sponsor.image or "/assets/foundation/img/people/tux.png" }}"
 						alt="{{ sponsor.title }}">
 				</div>
 				{% endif %}
 				<div>
-					<h6 class="mb-0">
+					<h6 class="mt-3 mb-0">
 						{{ sponsor.title }}
 					</h6>
 				</div>
@@ -49,7 +49,7 @@
 		<div class="mt-5">
 		{% if platinum_sponsors %}
 			<h4>Platinum Sponsors<h4>
-			{{ show_section(platinum_sponsors, color=True, with_img=True) }}
+			{{ show_section(platinum_sponsors, with_img=True) }}
 		{% endif %}
 
 		{% if gold_sponsors %}