Clarify public instance rules and definition of analytics (#565)

* Add section 'Rules for public instances'

* Clarify that all external scripts are prohibited

* Rename section 'Rules to have your instance in this list:'

* Update link to rules in new instance proposal

* Don't change the title, since public instances can also not be in the list

---------

Co-authored-by: TheFrenchGhosty <47571719+TheFrenchGhosty@users.noreply.github.com>

.github/ISSUE_TEMPLATE/new_instance.yaml

@@ -44,7 +44,7 @@ body:
         required: true
       - label: "If dash, proxy + download is enabled (default settings), the instance has unlimited traffic/bandwidth or close to unlimited (100TB minimum)"
         required: true
-      - label: "Instance is not running any kind of analytics"
+      - label: "Instance is not running any kind of analytics, including external scripts of any kind"
         required: true
       - label: "If using Cloudflare or any other DDoS protection service, settings are configured to allow uptime monitoring. Cloudflare users can consult [this](https://updown.io/doc/known-issues-when-monitoring-a-cloudflare-protected-website) guide"
         required: true
@@ -60,6 +60,14 @@ body:
       - label: "Ensure a proper uptime of my instance (around 90%)"
         required: true
 
+  - type: checkboxes
+    attributes:
+      label: Rules for public instances
+      description: By submitting this proposal, you agree to follow the [rules for public instances](https://docs.invidious.io/instances/#rules-for-public-instances). 
+      options:
+        - label: I agree to follow the rules for public instances
+          required: true
+
   - type: input
     id: country
     attributes:

docs/instances.md

@@ -84,7 +84,7 @@
 6. Instances MUST be served via HTTPS (or/and onion).
 7. Instances using any DDoS Protection / MITM MUST be marked as such (e.g. Cloudflare, DDoS-Guard).
 8. Instances using any type of anti-bot protection MUST be marked as such.
-9. Instances MUST NOT use any type of analytics.
+9. Instances MUST NOT use any type of analytics, including external scripts of any kind.
 10. Any system whose goal is to modify the content served to the user (i.e web server HTML rewrite) is considered the same as modifying the source code.
 11. Instances running a modified source code:
     - MUST respect the [GNU AGPL](https://en.wikipedia.org/wiki/GNU_Affero_General_Public_License) by publishing their source code and stating their changes **before** they are added to the list