Update roadmap to list alerting via the Pixie Plugin system. (#203)

* Update roadmap to list alerting via the Pixie Plugin system.

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* tweak

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

* tweak

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

Author: htroisi

content/en/01-about-pixie/04-roadmap.md

@@ -28,6 +28,6 @@ Pixie has a versatile execution engine which can ingest and export data in a var
 We are building a data plane for Kubernetes rather than a full-fledged observability solution. Here are some of the items that we do not plan to tackle. Note that our API makes it possible to enable these use cases with downstream applications.
 
 * Non-Kubernetes environments
-* Alerting (available via Pixie’s New Relic One integration or [Slackbot](/tutorials/integrations/slackbot-alert) API integration)
+* Alerting (available with the [Slackbot](/tutorials/integrations/slackbot-alert) API integration, coming soon to the [Pixie Plugin system](/reference/plugins/plugin-system))
 * Advanced dashboarding (available with Pixie's [Grafana plugin](/reference/plugins/grafana))
-* Long-term storage (available with the [Pixie Plugin system](/reference/plugins/plugin-system) and [New Relic One integration](https://newrelic.com/platform/kubernetes-pixie))
+* Long-term storage (available with the [Pixie Plugin system](/reference/plugins/plugin-system))

content/en/01-about-pixie/05-faq.md

@@ -74,7 +74,7 @@ Pixie has a [1GiB memory requirement](/installing-pixie/requirements/#memory) pe
 
 Retention time depends on the level of traffic in your cluster, but will generally be on the order of hours. Each [data table](/reference/datatables/) in Pixie (e.g. `http_events`) has its own maximum size. These tables collect data until the maximum size is reached, and then begin dropping the oldest data.
 
-Pixie's [Plugin System](/reference/plugins/plugin-system) integrates with other tools to for long-term retention. Other third-party observability tools (such as [New Relic’s integration](https://newrelic.com/platform/kubernetes-pixie)) may also provide this capability.
+Pixie's [Plugin System](/reference/plugins/plugin-system) integrates with third-party observability tools to provide long-term retention.
 
 ### How does Pixie secure its data?
 
@@ -142,7 +142,7 @@ Pixie does not yet offer full RBAC support. However, you can enable “Approvals
 
 Pixie does not offer alerting. However, alerts can be set up using Pixie’s API. For example, see the [Slackbot Alert Tutorial](/tutorials/integrations/slackbot-alert/).
 
-For comprehensive alerting, we recommend integrating with third-party observability tools (such as New Relic’s integration). In the future, Pixie's [Plugin System](/reference/plugins/plugin-system) will allow easy integration with other tools to setup alerts using Pixie data.
+In the future, Pixie's [Plugin System](/reference/plugins/plugin-system) will integrate with third-party observability tools to provide alerts using Pixie data.
 
 ### How do I delete a cluster?