Update index.html

fixes #5089

geonode/templates/index.html

@@ -125,7 +125,7 @@ <h4>{% trans "Farming" %}</h4>
           					</a>
           				</div>
           				<div class="col-xs-4 col-sm-3 col-md-2 col-lg-1">
-          					<a href="{% url "search" %}?limit=100&offset=0&category__identifier__in=farming&category__identifier__in=geoscientificInformation">
+          					<a href="{% url "search" %}?limit=100&offset=0&category__identifier__in=geoscientificInformation">
           						<div class="category" data-toggle="tooltip" data-placement="auto"
           							title="{% trans "Information pertaining to earth sciences. Examples: geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth s rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, erosion." %}">
           							<i class="fa fa-bullseye fa-3x"></i>