typo

Author: Rich-Harris

documentation/docs/03-runes/01-state.md

@@ -66,7 +66,7 @@ Objects and arrays are made deeply reactive by wrapping them with [`Proxies`](ht
 <button onclick={() => (entries[1].text = 'baz')}>change second entry text</button>
 ```
 
-> Only POJOs (plain of JavaScript objects) are made deeply reactive. Reactivity will stop at class boundaries and leave those alone
+> Only POJOs (plain old JavaScript objects) are made deeply reactive. Reactivity will stop at class boundaries and leave those alone
 
 ## `$state.frozen`