feat: update privacy policy to document matomo addition

content/privacy-policy/index.md

@@ -17,15 +17,20 @@ logs aren't shared with third-parties.
 
 ### Information we collect and what we use it for
 
-Website activity is logged and stored for a period of one month for
-debugging purposes. We don't share this information with anyone nor do
-we run analytics on it.
+Website activity is logged and stored for a period of two months for
+debugging purposes. We don't share this information with anyone.
+
+Website activity is also measured using a self-hosted
+[Matomo](https://matomo.org) instance that is configured to not set any
+tracking cookies and respect [Do Not
+Track](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/DNT)
+headers.
 
 The following information is collected:
 
--   **Page URL:**. the page URL of each page view on this website. For
+-   **Page URL**. the page URL of each page view on this website. For
     example: _https://librepages.org/contact_
--   **Browser:** We use this to reproduce browser-specific bugs people
+-   **Browser**. We use this to reproduce browser-specific bugs people
     see. This is derived from the User-Agent HTTP header. For example: _Chrome_.
 
 ## Contact us
@@ -33,3 +38,18 @@ The following information is collected:
 [Contact us](https://matrix.to/#/#librepages:matrix.batsense.net) if you have any questions.
 
 Effective Date: _08th September, 2022_
+Last edit: 2022-09-12
+
+## Changes
+
+#### 2022-09-12
+
+1. We started using a self-hosted [Matomo](httos://matomo.org) instance to collect basic
+   statistics like pages views. The analytics is not shared with any
+   third-party and doesn't store any tracking cookies on the visitor's browser.
+
+    All analytics data is automatically deleted after a period
+    of 60 days.
+
+2. Log storage duration is increased to two months from the original one
+   month period.