docs: explain how to add an end user

Signed-off-by: Jaime Silvela <[email protected]>

Author: jsilvela

archetypes/end_users.md

@@ -0,0 +1,6 @@
+---
+title: {{ .Name | title}}
+image: logo/mylogo.png
+homepage: URL
+weight: N
+---

content/end_users/_index.md

@@ -11,8 +11,14 @@ CNCF defines end users as follows:
 
 The full updated list of end users can be found in the
 [CNPG ADOPTERS page](https://github.com/cloudnative-pg/cloudnative-pg/blob/main/ADOPTERS.md#cloudnativepg-adopters).
-If you want to add your organization, please open a pull request for the
-[ADOPTERS file](https://github.com/cloudnative-pg/cloudnative-pg/blob/main/ADOPTERS.md).
 
+**If you want to add your organization**, please open a pull request for the
+[ADOPTERS file](https://github.com/cloudnative-pg/cloudnative-pg/blob/main/ADOPTERS.md).
+Once you have a published entry there, you may open a pull request to add your
+organization to the list of End Users in this repo. Note that the
+`weight` field in the front matter needs to be populated according to the order
+in `ADOPTERS.md`.
+Please check the README in the `end_users` folder or seek asistance from
+maintainers to assign the correct `weight` to your enty.
 
 Below is a list of several CloudNativePG end users, in chronological order.