clarify alert message behavior in issue #7494 (#7629)

* clarify alert message behavior in issue #7494

Reworded the explanation regarding the alert message in the documentation to better describe its behavior. The alert shows the previously entered name, with an initial value set to an empty string.

* Update src/content/learn/state-a-components-memory.md

* Update src/content/learn/state-a-components-memory.md

---------

Co-authored-by: Ricky <[email protected]>

Author: Punith1117

src/content/learn/state-a-components-memory.md

@@ -1452,7 +1452,7 @@ If your linter is [configured for React](/learn/editor-setup#linting), you shoul
 
 #### Remove unnecessary state {/*remove-unnecessary-state*/}
 
-When the button is clicked, this example should ask for the user's name and then display an alert greeting them. You tried to use state to keep the name, but for some reason it always shows "Hello, !".
+When the button is clicked, this example should ask for the user's name and then display an alert greeting them. You tried to use state to keep the name, but for some reason the first time it shows "Hello, !", and then "Hello, [name]!" with the previous input every time after.
 
 To fix this code, remove the unnecessary state variable. (We will discuss about [why this didn't work](/learn/state-as-a-snapshot) later.)