docs/w3c.md in appium_lib-9.15.1 vs docs/w3c.md in appium_lib-9.15.2

@@ -13,9 +13,30 @@
 
 driver.action
       .move_to_location(500, 500).pointer_down(:left)
       .move_to_location(0, 700)
       .release.perform
+
+# multiple action chains
+f1 = driver.action.add_pointer_input(:touch, 'finger1')
+f1.create_pointer_move(duration: 1, x: 200, y: 500,
+                   origin: ::Selenium::WebDriver::Interactions::PointerMove::VIEWPORT)
+f1.create_pointer_down(:left)
+f1.create_pause(0.5)
+f1.create_pointer_move(duration: 1, x: 200, y: 200,
+                   origin: ::Selenium::WebDriver::Interactions::PointerMove::VIEWPORT)
+f1.create_pointer_up(:left)
+
+f2 = driver.action.add_pointer_input(:touch, 'finger2')
+f2.create_pointer_move(duration: 1, x: 200, y: 500,
+                   origin: ::Selenium::WebDriver::Interactions::PointerMove::VIEWPORT)
+f2.create_pointer_down(:left)
+f2.create_pause(0.5)
+f2.create_pointer_move(duration: 1, x: 200, y: 800,
+                   origin: ::Selenium::WebDriver::Interactions::PointerMove::VIEWPORT)
+f2.create_pointer_up(:left)
+
+driver.perform_actions [f1, f2]
 ```
 
 # Note
 ## Coordinate points
 - jsonwp