fix: fixed closing tag error in the docs

Author: sakakibara-dev

docs/docs/getting-started.mdx

@@ -146,9 +146,9 @@ import { Tooltip } from 'react-tooltip'
 2 . Create anchor elements.
 
 ```jsx
-<a className="my-anchor-element">◕‿‿◕</p>
-<a className="my-anchor-element">◕‿‿◕</p>
-<a className="my-anchor-element">◕‿‿◕</p>
+<a className="my-anchor-element">◕‿‿◕</a>
+<a className="my-anchor-element">◕‿‿◕</a>
+<a className="my-anchor-element">◕‿‿◕</a>
 ```
 
 3 . Create `<Tooltip />` element and set the `anchorSelect` prop.