Fix: Remove play button from guide example (#1118)

* fix: Remove play button from guide example

* Update index.md

* update other examples

docs/guide/src/en/async/spawn.md

@@ -2,11 +2,11 @@
 
 The `use_future` and `use_coroutine` hooks are useful if you want to unconditionally spawn the future. Sometimes, though, you'll want to only spawn a future in response to an event, such as a mouse click. For example, suppose you need to send a request when the user clicks a "log in" button. For this, you can use `cx.spawn`:
 
-```rust
+```rust, no_run
 {{#include ../../../examples/spawn.rs:spawn}}
 ```
 
-> Note: `spawn` will always spawn a *new* future. You most likely don't want to call it on every render.
+> Note: `spawn` will always spawn a _new_ future. You most likely don't want to call it on every render.
 
 Calling `spawn` will give you a `JoinHandle` which lets you cancel or pause the future.
 
@@ -14,6 +14,6 @@ Calling `spawn` will give you a `JoinHandle` which lets you cancel or pause the
 
 Sometimes, you might want to spawn a background task that needs multiple threads or talk to hardware that might block your app code. In these cases, we can directly spawn a Tokio task from our future. For Dioxus-Desktop, your task will be spawned onto Tokio's Multithreaded runtime:
 
-```rust
+```rust, no_run
 {{#include ../../../examples/spawn.rs:tokio}}
 ```