Add support for Matomo (formerly Piwik) (#508)

Co-authored-by: Luiz F. A. de Prá <luizdepra@users.noreply.github.com>

exampleSite/config.toml

@@ -80,24 +80,37 @@ disqusShortname = "yourdiscussshortname"
 [params.cloudflare]
     token = "token"
 
+# If you want to use Matomo(https://matomo.org) for analytics, add this section
+[params.matomo]
+    # Default value is "1", overwrite this if you are cloud-hosting
+    siteID = "ABCDE"
+    # For cloud-hosting, use provided URL, e.g. example.matomo.cloud
+    serverURL = "analytics.example.com"
+
 # If you want to implement a Content-Security-Policy, add this section
 [params.csp]
-	childsrc = ["'self'"]
-	fontsrc=["'self'",
-		"https://fonts.gstatic.com",
-		"https://cdn.jsdelivr.net/"]
-	formaction = ["'self'"]
-	framesrc = ["'self'"]
-	imgsrc = ["'self'"]
-	objectsrc = ["'none'"]
-	stylesrc = ["'self'",
-		"'unsafe-inline'",
-		"https://fonts.googleapis.com/",
-		"https://cdn.jsdelivr.net/"]
-	scriptsrc = ["'self'",
-		"'unsafe-inline'",
-		"https://www.google-analytics.com"]
-	prefetchsrc = ["'self'"]
+	  childsrc = ["'self'"]
+	  fontsrc = [
+        "'self'",
+		    "https://fonts.gstatic.com",
+		    "https://cdn.jsdelivr.net/"
+    ]
+	  formaction = ["'self'"]
+	  framesrc = ["'self'"]
+	  imgsrc = ["'self'"]
+	  objectsrc = ["'none'"]
+	  stylesrc = [
+        "'self'",
+		    "'unsafe-inline'",
+		    "https://fonts.googleapis.com/",
+		    "https://cdn.jsdelivr.net/"
+    ]
+	  scriptsrc = [
+        "'self'",
+		    "'unsafe-inline'",
+		    "https://www.google-analytics.com"
+    ]
+	  prefetchsrc = ["'self'"]
 
 [taxonomies]
   category = "categories"