Update README.md

Author: gruhn

README.md

@@ -16,8 +16,8 @@ A Vue.js 2 component, accessing the device camera and allowing users to read QR
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 | No | Yes | Yes | Yes | 11+ |
 
-* Chrome requires [HTTPS or localhost](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins).
-* on iOS, it doesn't (yet?) work in non-Safari browsers (see [#29](../../issues/29))
+* Chrome requires [HTTPS or localhost](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins) (see [#38](../../issues/38) for help)
+* on iOS it **only** works with Safari. Chrome or Firefox for iOS are not supported (see [#29](../../issues/29))
 * more details on [Caniuse](https://caniuse.com/#feat=stream)
 
 # Usage