Find and replace image with image resource in docs

[sampeinado]

Why
Interviews with kpack users (n=4), particularly those who teach kpack to others, have expressed frustration at the overloaded use of the name 'image' being used to describe the core custom resource produced by kpack. Today, "image" means a container image in industry standard terminology. In order to alert new users that an image in kpack is a new concept (not a container image), we should differentiate or clarify the name of the image resource in kpack in order to help new users understand the purpose of kpack and get going quickly.

What
Find and replace "image" with "image resource" on each of the following docs pages whenever the concept is referenced or introduced. kp CLI examples that include kp image need not be replaced since image will remain the command name (CLI issue here).

• Install kpack

• Get started with the tutorial

• Check out the documentation on kpack concepts:

  • Stacks
  • Stores
  • Images
  • Secrets
  • Builders
  • Builds
  • Service Bindings

• Interact with kpack using kpack CLI

• Tailing logs with the kpack log utility

• Documentation on Local Development