Apply suggestions from code review

Co-authored-by: Mubelotix <[email protected]>

Author: guimachiavelli

.code-samples.meilisearch.yaml

@@ -1507,7 +1507,7 @@ webhooks_patch_1: |-
     }'
 webhooks_delete_1: |-
   curl \
-    -X DELETE 'MEILISEARCH_URL/webhooks'
+    -X DELETE 'MEILISEARCH_URL/webhooks/WEBHOOK_UUID'
 
 ### Code samples for experimental features
 experimental_get_metrics_1: |-

learn/self_hosted/configure_meilisearch_at_launch.mdx

@@ -495,7 +495,7 @@ Notifies the configured URL whenever Meilisearch [finishes processing a task](/l
 
 The webhook payload contains the list of finished tasks in [ndjson](https://github.com/ndjson/ndjson-spec). For more information, [consult the dedicated task webhook guide](/learn/async/task_webhook).
 
-The task webhook option is only available for self-hosted instances. If you are using Meilisearch Cloud, use the [`/webhooks` API route](/reference/api/webhooks) instead.
+The task webhook option requires having access to a command-line interface. If you are using Meilisearch Cloud, use the [`/webhooks` API route](/reference/api/webhooks) instead.
 
 ### Task webhook authorization header
 

reference/errors/error_codes.mdx

@@ -613,7 +613,7 @@ The create webhook request did not contain a valid JSON payload. Meilisearch als
 
 ### `invalid_webhook_url`
 
-The provided webhook URL isn’t a valid JSON value, `null`, or missing.
+The provided webhook URL isn’t a valid JSON string, is `null`, is missing, or its value cannot be parsed as a valid URL.
 
 ### `invalid_webhook_headers`