Use full explainer name in README links

Author: Ana Sollano Kim

platform-provided-behaviors-for-custom-elements/README.md

@@ -3,7 +3,7 @@
 ➡️ **[Open the demo](https://microsoftedge.github.io/Demos/platform-provided-behaviors-for-custom-elements/)** ⬅️
 
 🔗 **Links:**
-* Explainer: [Platform-provided behaviors explainer](https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/PlatformProvidedBehaviors/explainer.md)
+* Explainer: [Platform-provided behaviors for custom elements explainer](https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/PlatformProvidedBehaviors/explainer.md)
 * WHATWG issue: [#12150](https://github.com/whatwg/html/issues/12150)
 * Spec PR: [whatwg/html#12409](https://github.com/whatwg/html/pull/12409)
 * Chromium bug: [crbug.com/486928684](https://crbug.com/486928684)
@@ -21,7 +21,7 @@ Platform-provided behaviors allow custom elements to adopt native HTML behaviors
 
 ## Learn more
 
-To learn more, read our [platform-provided behaviors explainer](https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/PlatformProvidedBehaviors/explainer.md).
+To learn more, read our [platform-provided behaviors for custom elements explainer](https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/PlatformProvidedBehaviors/explainer.md).
 
 ## Test the feature