docs(intro): remove stray wait from sync snippet

Author: pavelfeldman

docs/src/intro-python.md

@@ -58,7 +58,7 @@ from playwright.sync_api import sync_playwright
 
 with sync_playwright() as p:
     browser = p.webkit.launch()
-    page = await browser.new_page()
+    page = browser.new_page()
     page.goto("http://whatsmyuseragent.org/")
     page.screenshot(path="example.png")
     browser.close()