docs: await no longer need pending

Author: hyunbinseo

documentation/docs/05-special-elements/01-svelte-boundary.md

@@ -24,7 +24,7 @@ For the boundary to do anything, one or more of the following must be provided.
 
 ### `pending`
 
-As of Svelte 5.36, boundaries with a `pending` snippet can contain [`await`](await-expressions) expressions. This snippet will be shown when the boundary is first created, and will remain visible until all the `await` expressions inside the boundary have resolved ([demo](/playground/untitled#H4sIAAAAAAAAE21QQW6DQAz8ytY9BKQVpFdKkPqDHnorPWzAaSwt3tWugUaIv1eE0KpKD5as8YxnNBOw6RAKKOOAVrA4up5bEy6VGknOyiO3xJ8qMnmPAhpOZDFC8T6BXPyiXADQ258X77P1FWg4moj_4Y1jQZZ49W0CealqruXUcyPkWLVozQXbZDC2R606spYiNo7bqA7qab_fp2paFLUElD6wYhzVa3AdRUySgNHZAVN1qDZaLRHljTp0vSTJ9XJjrSbpX5f0eZXN6zLXXOa_QfmurIVU-moyoyH5ib87o7XuYZfOZe6vnGWmx1uZW7lJOq9upa-sMwuUZdkmmfIbfQ1xZwwaBL8ECgk9zh8axJAdiVsoTsZGnL8Bg4tX_OMBAAA=)):
+This snippet will be shown when the boundary is first created, and will remain visible until all the [`await`](await-expressions) expressions inside the boundary have resolved ([demo](/playground/untitled#H4sIAAAAAAAAE21QQW6DQAz8ytY9BKQVpFdKkPqDHnorPWzAaSwt3tWugUaIv1eE0KpKD5as8YxnNBOw6RAKKOOAVrA4up5bEy6VGknOyiO3xJ8qMnmPAhpOZDFC8T6BXPyiXADQ258X77P1FWg4moj_4Y1jQZZ49W0CealqruXUcyPkWLVozQXbZDC2R606spYiNo7bqA7qab_fp2paFLUElD6wYhzVa3AdRUySgNHZAVN1qDZaLRHljTp0vSTJ9XJjrSbpX5f0eZXN6zLXXOa_QfmurIVU-moyoyH5ib87o7XuYZfOZe6vnGWmx1uZW7lJOq9upa-sMwuUZdkmmfIbfQ1xZwwaBL8ECgk9zh8axJAdiVsoTsZGnL8Bg4tX_OMBAAA=)):
 
 ```svelte
 <svelte:boundary>