DOCSP-40653 Fix the Ops Manager api doc to enable/disable global alert (#264)

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- [DOCSP-40653](https://jira.mongodb.org/browse/DOCSP-40653)
-
[STAGING](https://preview-mongodbkanchanamongodb.gatsbyjs.io/ops-manager/DOCSP-40653/reference/api/global-alert-configurations-toggle-one/#example-request)
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### Self-Review Checklist

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[Define](https://wiki.corp.mongodb.com/display/DE/Taxonomy+tagging+instructions)
taxonomy
[values](https://wiki.corp.mongodb.com/display/DE/Docs+Taxonomy) at top
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Author: kanchana-mongodb

source/reference/api/global-alert-configurations-toggle-one.txt

@@ -92,7 +92,7 @@ Example Request
         --header "Accept: application/json" \
         --header "Content-Type: application/json" \
         --include \
-        --request PUT "https://{+opsmgr-url+}/api/public/v1.0/globalAlertConfigs/{GLOBAL-ALERT-CONFIG-ID}" \
+        --request PATCH "https://{+opsmgr-url+}/api/public/v1.0/globalAlertConfigs/{GLOBAL-ALERT-CONFIG-ID}" \
         --data '{
           "enabled" : false
         }'