Tweak words slightly

content/blog/2018-08-01-react-v-16-4-2.md

@@ -77,9 +77,9 @@ Note that only the `react-dom` package needs to be updated.
 
 ## Detailed Description
 
-Your app might be affected by this vulnerability only if these two conditions are true:
+Your app might be affected by this vulnerability only if both of these two conditions are true:
 
-* Your app is **being rendered to HTML using [ReactDOMServer API](/docs/react-dom-server.html)**.
+* Your app is **being rendered to HTML using [ReactDOMServer API](/docs/react-dom-server.html)**, and
 * Your app **includes a user-supplied attribute name in an HTML tag.**
 
 Specifically, the vulnerable pattern looks like this: