update selenium-appium version number

Author: licanhua

example/package.json

@@ -18,7 +18,7 @@
     "@types/selenium-webdriver": "^4.0.1",
     "babel-jest": "^24.8.0",
     "jest": "^24.8.0",
-    "selenium-appium": "^0.0.12",
+    "selenium-appium": "^0.0.13",
     "selenium-webdriver": "^4.0.0-alpha.4",
     "typescript": "^3.5.3",
     "appium": "1.14.2",