fix a table in bindings doc
MODIFY
docs/en/writing-running-appium/appium-bindings.md
docs/en/writing-running-appium/appium-bindings.md
Appium has libraries for:
-Language | Source
- :--|--:
-[Ruby][rubygems] | [GitHub](https://github.com/appium/ruby_lib)
-[Python][pypi] | [GitHub](https://github.com/appium/python-client)
-[Java][maven] | [GitHub](https://github.com/appium/java-client)
-[JavaScript][npm] | [GitHub](https://github.com/admc/wd)
-[PHP][php] | [GitHub](https://github.com/appium/php-client)
-[C#][nuget] | [GitHub](https://github.com/appium/appium-dotnet-driver)
-[Objective-C][cocoapods] | [GitHub](https://github.com/appium/selenium-objective-c)
+| Language | Source |
+|:---------|-------:|
+| [Ruby][rubygems] | [GitHub](https://github.com/appium/ruby_lib) |
+| [Python][pypi] | [GitHub](https://github.com/appium/python-client) |
+| [Java][maven] | [GitHub](https://github.com/appium/java-client) |
+| [JavaScript][npm] | [GitHub](https://github.com/admc/wd) |
+| [PHP][php] | [GitHub](https://github.com/appium/php-client) |
+| [C#][nuget] | [GitHub](https://github.com/appium/appium-dotnet-driver) |
+| [Objective-C][cocoapods] | [GitHub](https://github.com/appium/selenium-objective-c) |
[rubygems]: http://rubygems.org/gems/appium_lib
[pypi]: https://pypi.python.org/pypi/Appium-Python-Client

fix a table in bindings doc (#8772)