Vue SFC Playground link updated

The playground links are updated to match the code changes.

Author: Moshiur Rahman

src/guide/essentials/watchers.md

@@ -46,7 +46,7 @@ export default {
 <p>{{ answer }}</p>
 ```
 
-[Try it in the Playground](https://sfc.vuejs.org/#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)
+[Try it in the Playground](https://sfc.vuejs.org/#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)
 
 The `watch` option also supports a dot-delimited path as the key:
 
@@ -97,7 +97,7 @@ watch(question, async (newQuestion, oldQuestion) => {
 </template>
 ```
 
-[Try it in the Playground](https://sfc.vuejs.org/#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)
+[Try it in the Playground](https://sfc.vuejs.org/#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)
 
 ### Watch Source Types