Update example tests

Author: mdmintz

examples/raw_sb.py

@@ -2,7 +2,7 @@
 from seleniumbase import SB
 
 with SB() as sb:  # By default, browser="chrome" if not set.
-    sb.open("https://seleniumbase.github.io/realworld/login")
+    sb.open("https://seleniumbase.io/realworld/login")
     sb.type("#username", "demo_user")
     sb.type("#password", "secret_pass")
     sb.enter_mfa_code("#totpcode", "GAXG2MTEOR3DMMDG")  # 6-digit

examples/test_mfa_login.py

@@ -10,7 +10,7 @@ def test_mfa_login(self):
         self.assert_text("Welcome!", "h1")
         self.highlight("img#image1")  # A fancier assert_element() call
         self.click('a:contains("This Page")')  # Use :contains() on any tag
-        self.save_screenshot_to_logs()  # In "./latest_logs/" folder.
+        self.save_screenshot_to_logs()  # ("./latest_logs" folder for test)
         self.click_link("Sign out")  # Link must be "a" tag. Not "button".
         self.assert_element('a:contains("Sign in")')
         self.assert_exact_text("You have been signed out!", "#top_message")