Update descriptions for TriggerTemplates and TriggerBindings

Updates descriptions for `TriggerTemplates` and `TriggerBindings` to correct technical inaccuracies.

docs/README.md

@@ -32,21 +32,21 @@ the functionality of Tekton Pipelines to support events:
 *  [`Trigger`](https://github.com/tektoncd/triggers/blob/main/docs/triggers.md) - specifies what happens when the `EventListener` detects an event. A `Trigger` specifies
    a `TriggerTemplate`, a `TriggerBinding`, and optionally, an `Interceptor`.
 
-*  [`TriggerTemplate`](https://github.com/tektoncd/triggers/blob/main/docs/triggertemplates.md) - specifies a template for the `TaskRun` or `PipelineRun` you want to
-   instantiate and execute when EventListener detects an event.
+*  [`TriggerTemplate`](https://github.com/tektoncd/triggers/blob/main/docs/triggertemplates.md) - specifies a blueprint for the resource, such as a `TaskRun` or `PipelineRun`,
+   that you want to instantiate and/or execute when your `EventListener` detects an event. It exposes parameters that you can use anywhere within your resource's template.
 
 *  [`TriggerBinding`](https://github.com/tektoncd/triggers/blob/main/docs/triggerbindings.md) - specifies the fields in the event payload from which you want to extract
-   data as well as the fields in your `TaskRun` or `PipelineRun` to populate with the extracted values. In other words, it *binds* payload fields to `TaskRun` or
-   `PipelineRun` fields.
+   data and the fields in your corresponding `TriggerTemplate` to populate with the extracted values. You can then use the populated fields in the `TriggerTemplate` to
+   populate fields in the associated `TaskRun` or `PipelineRun`.
 
-*  [`ClusterTriggerBinding`](https://github.com/tektoncd/triggers/blob/main/docs/clustertriggerbindings.md) - a cluster-scoped version of the `TriggerBinding`,
+*  [`ClusterTriggerBinding`](https://github.com/tektoncd/triggers/blob/main/docs/triggerbindings.md) - a cluster-scoped version of the `TriggerBinding`,
    especially useful for reuse within your cluster.
 
 *  [`Interceptor`](https://github.com/tektoncd/triggers/blob/main/docs/eventlisteners.md#interceptors) - a "catch-all" event processor for a specific platform that
    runs before the `TriggerBinding` enabling you to perform payload filtering, verification (using a secret), transformation, define and test trigger conditions, and other
    useful processing. Once the event data passes through an interceptor, it then goes to the `Trigger` before you pass the payload data to the `TriggerBinding`.
 
-   **Note:** `Interceptors` are currently part of the `EventListener` API but are being converted to a standalone CRD in [PR 960](https://github.com/tektoncd/triggers/pull/960).
+   **Note:** `Interceptors` are currently part of `EventListeners` but are being converted to a standalond CRD in [PR 960](https://github.com/tektoncd/triggers/pull/960). 
 
 
 ## What can I do with Triggers?
@@ -57,7 +57,8 @@ As an example, you can implement the following CI/CD workflow with Triggers:
 
 2. Triggers listens for a git push event indicating the test finished successfully. When it detects one, it validates the test's outcome and executes a `Pipeline` that builds the tested code.
 
-3. When the associated `PipelineRun` completes execution, Triggers checks the outcome of the build, and if it's successful, executes a [`Task`](https://github.com/tektoncd/pipeline/blob/master/docs/tasks.md) that uploads the build artifacts to the Docker registry of your choice.
+3. When the associated `PipelineRun` completes execution, Triggers checks the outcome of the build, and if it's successful, executes a [`Task`](https://github.com/tektoncd/pipeline/blob/master/docs/tasks.md)
+   that uploads the build artifacts to the Docker registry of your choice.
 
 4. Finally, the Docker registry sends an event to [Pub/Sub](https://cloud.google.com/pubsub/docs/overview), which triggers a `Pipeline` that pushes the build artifacts to a staging environment.