Documentation Typo: "will be ran" -> "will be run"

[chrislconover]

https://guides.cocoapods.org/syntax/podspec.html#prepare_command
https://github.com/CocoaPods/Core/blob/e6451e172c33f3aa77a3f8baa7b6b5b8c3b5da14/lib/cocoapods-core/specification/dsl.rb

@!method prepare_command=(command)

  #
  #   A bash script that will be executed after the Pod is downloaded. This
  #   command can be used to create, delete and modify any file downloaded
  #   **and will be ran** before any paths for other file attributes of the
  #   specification are collected.
  #
  #   This command is executed before the Pod is cleaned and before the
  #   Pods project is created. The working directory is the root of the
  #   Pod.
  #