Add RUMvision to Baseline in the wild (#2545)

* added RUMvision link
* added missing word `is` in sentence

Author: ErwinHofmanRV

gh-pages/src/baseline-in-the-wild.md

@@ -18,6 +18,7 @@ You can find Baseline in the following places. If you spot somewhere else using
 - [Can I WebView](https://caniwebview.com/search/?cat=web_feature)
 - [MDN](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility)
 - [RUM Archive Insights](https://rumarchive.com/insights/)
+- [RUMvision](https://www.rumvision.com/help-center/monitoring/dashboard/baseline/)
 - [web-features explorer](https://web-platform-dx.github.io/web-features-explorer/)
 
 ## Presentations

gh-pages/src/use-baseline.md

@@ -11,7 +11,7 @@ You can use Baseline to:
 
 ## Check if a feature works across browsers
 
-When visiting sites like [Can I Use](https://caniuse.com), [MDN Web Docs](https://developer.mozilla.org/), and [RUM Archive Insights](https://rumarchive.com/insights/#baseline) check the status of a feature to learn if it available across browsers.
+When visiting sites like [Can I Use](https://caniuse.com), [MDN Web Docs](https://developer.mozilla.org/), and [RUM Archive Insights](https://rumarchive.com/insights/#baseline) check the status of a feature to learn if it is available across browsers.
 
 ## Let others know when a feature works across browsers