fix: typo in docs

Thanks to Dan in PR : https://github.com/soal/vue-mapbox/pull/128/files

Co-Authored-By: Dan Shields <dan@chips.nyc>

Author: vinayakkulkarni

docs/README.md

@@ -36,7 +36,7 @@ If you like long story, check out [blog post](https://soal.red/reasoning-behind-
       @click="handleClick"
     />
   </MglMap>
-</temaplate>
+</template>
 
 <script>
 import {