Update style.md with actual examples of mz_ore::test

doc/developer/style.md

@@ -365,6 +365,30 @@ Use the `mz_ore::test` macro instead of `test`, since it automatically
 initializes logging. For tokio tests you can use
 `#[mz_ore::test(tokio::test)]`.
 
+Before:
+```rust
+#[test]
+fn test_auth_base() {
+    mz_ore::test::init_logging();
+    // Test body here
+}
+```
+
+After:
+```rust
+#[mz_ore::test]
+fn test_auth_base() {
+    // Test body here
+}
+```
+
+For tokio tests with parameters:
+```rust
+#[mz_ore::test(tokio::test(flavor = "multi_thread"))]
+async fn state_cache_concurrency() {
+    // Test body here
+}
+```
 
 [Clippy]: https://github.com/rust-lang/rust-clippy
 [rustfmt]: https://github.com/rust-lang/rustfmt