add nobot and optout/optin

src/utils.rs

@@ -112,3 +112,9 @@ impl VisExt for Visibility {
         }
     }
 }
+
+pub(crate) fn strip_html(content: &str) -> String {
+    let content = content.replace("<br/>", "<br/> ");
+    let content = content.replace("</p>", "</p> ");
+    voca_rs::strip::strip_tags(&content)
+}