added option to hide code input but still show output (see @gpagliuca PR spatialaudio#86)

Author: brbarkley

src/nbsphinx.py

@@ -93,6 +93,13 @@
 {% endif %}
 {%- endblock any_cell %}
 
+{% block input_group -%}                                                        
+{%- if cell.metadata.hide_input -%} 
+{%- else -%} 
+{{ super() }} 
+{%- endif -%} 
+{% endblock input_group %}
+
 
 {% block input -%}
 .. nbinput:: {% if cell.metadata.magics_language -%}