add docs on restart

Author: avenceslau

src/content/docs/workflows/build/trigger-workflows.mdx

@@ -155,12 +155,6 @@ Once stopped/terminated, the Workflow instance *cannot* be resumed.
 
 ### Restart a Workflow
 
-:::caution
-
-**Known issue**: Restarting a Workflow via the `restart()` method is not currently supported and will throw an exception (error).
-
-:::
-
 ```ts
 let instance = await env.MY_WORKFLOW.get("abc-123")
 await instance.restart() // Returns Promise<void>

src/content/docs/workflows/reference/limits.mdx

@@ -25,7 +25,7 @@ Many limits are inherited from those applied to Workers scripts and as documente
 | Maximum steps per Workflow [^5]           | 1024 | 1024 |
 | Maximum Workflow executions               | 100,000 per day [shared with Workers daily limit](/workers/platform/limits/#worker-limits) | Unlimited |
 | Concurrent Workflow instances (executions) per account   | 25 | 10,000 |
-| Maximum Workflow instance creation rate | 100 per second [^6] | 100 per second [^6] |
+| Maximum Workflow instance creation rate [^7] | 100 per second [^6] | 100 per second [^6] |
 | Maximum number of [queued instances](/workflows/observability/metrics-analytics/#event-types) | 10,000 | 100,000 |
 | Retention limit for completed Workflow state | 3 days | 30 days [^2] |
 | Maximum length of a Workflow name [^4]         | 64 characters | 64 characters |
@@ -42,6 +42,8 @@ Many limits are inherited from those applied to Workers scripts and as documente
 
 [^6]: Workflows will return a HTTP 429 rate limited error if you exceed the rate of new Workflow instance creation.
 
+[^7]: Each instance created or restarted counts towards this limit
+
 <Render file="limits_increase" product="workers" />
 
 ### Increasing Workflow CPU limits