Add instance template: ask if the issue's author is the instance owne…

…r. (#26)

.github/ISSUE_TEMPLATE/add-instance.md

@@ -6,9 +6,27 @@ labels: instance add, instance
 assignees: ''
 
 ---
+<!-- please answer the following questions (replace [ ] by [x] to say yes) -->
+
+* [ ] It is my instance.
+* [ ] I give the right to searx.space to check my instance (every 3 hours for the response times, every 24 hours for the other tests).
 
 <!--
-Replace <searx instance url> in the title by the URL.
 
-Optional question: does the instance contains some specific customizations ?
+If you have modified searx, please provide a URL to the source code and make sure that the same URL is publicly accessible in your instance's site.
+
+Currently, if you don't give the right to searx.space to check your instance, it is not possible to add your instance to the list.
+
+Be sure to have configured filtron:
+* once your instance is added to searx.space, it will receive requests from different bots.
+* removing your instance from searx.space won't stop the bots.
+
+About searx.space:
+* source code: https://github.com/dalf/searx-stats2
+* your instance will received requests from these IP addresses: 2001:41d0:8:de3::1 and 176.31.252.227 (it may change in the future)
+
+If you are using Apache, Nginx, you can use https://ssl-config.mozilla.org to get A+ TLS grade.
+
+You can use https://github.com/searx/searx-docker/blob/master/Caddyfile#L19-L48 to get A+ HTML grade.
+
 -->