Rebuild the FAQ

Keep forgetting to do this!

FAQ.md

@@ -105,23 +105,15 @@ If you want them more like this:
 +---------------+
 ```
 
-the best approach is to wrap each widget in a container that individually
-centers it. For example:
+the best approach is to wrap each widget in a [`Center`
+container](https://textual.textualize.io/api/containers/#textual.containers.Center)
+that individually centers it. For example:
 
 ```python
 from textual.app import App, ComposeResult
-from textual.containers import Container
+from textual.containers import Center
 from textual.widgets import Button
 
-class Center( Container ):
-    DEFAULT_CSS = """
-    Center {
-        height: auto;
-        width: 100%;
-        align: center middle;
-    }
-    """
-
 class ButtonApp(App):
 
     CSS = """
@@ -182,7 +174,7 @@ terminal application. Which keys get passed on can differ from terminal to
 terminal, and from operating system to operating system.
 
 Because of this it's best to stick to key combinations that are known to be
-universally-supported; these include:
+universally-supported; these include the likes of:
 
 - Letters
 - Numbers