Update buildpack-basics.md

- Added Platform Definition

Signed-off-by: QuillPusher <[email protected]>

content/docs/buildpack-basics.md

@@ -32,6 +32,20 @@ buildpack. All of these steps are part of a lifecycle.
 
 ![lifecycle](/images/lifecycle.png)
 
+### What is a Platform
+
+A platform typically refers to an organization or service provider (e.g.,
+kpack, Tekton, Fly.io, Digital Ocean, Google Cloud, Heroku, SalesForce, etc.)
+that incorporates Buildpacks within their products to make buildpack
+functionality available to their end-users (typically, application
+developers). 
+
+A platform can be a:
+
+- A local CLI tool
+- A plugin for a continuous integration service
+- A cloud application platform
+
 ## Who uses Buildpacks (Personas)
 
 ### App Developers
@@ -41,8 +55,8 @@ workflows.
 
 ### Platform Operators
 
-Operators of large platforms (Google Cloud, Salesforce, Heroku, etc.) that
-incorporate Buildpacks within their platform operations.
+Operators of platforms (Google Cloud, Salesforce, etc.) that incorporate
+Buildpacks within their platforms to simplify the end-user experience.
 
 ### Buildpack Authors