Made style changes

Adhered to the style guide rules and appended content to a single callout.

Author: tejaswaroop-nr

src/content/docs/release-notes/mobile-release-notes/ios-release-notes/ios-agent-757.mdx

@@ -7,10 +7,8 @@ downloadLink: 'https://download.newrelic.com/ios_agent/NewRelic_XCFramework_Agen
 
 <Callout variant="important">
 Starting from iOS SDK version 7.5.4, a change has been implemented that causes previously suppressed Handled Exception events to be reported.
-</Callout>
 
-<Callout variant="important">
-Please update to New Relic iOS agent 7.5.8. In iOS SDK version 7.5.7, a change has was implemented that could cause a crash on agent launch in some cases. A fix was implemented in our New Relic iOS agent 7.5.8 release.
+Please update to New Relic iOS agent 7.5.8. We've identified a bug in iOS SDK version 7.5.7 that could cause a crash on agent launch, and a fix is included in the New Relic iOS agent 7.5.8 release.
 </Callout>
 
 ## Fixed in this release

src/content/docs/release-notes/mobile-release-notes/ios-release-notes/ios-agent-758.mdx

@@ -7,10 +7,8 @@ downloadLink: 'https://download.newrelic.com/ios_agent/NewRelic_XCFramework_Agen
 
 <Callout variant="important">
 Starting from iOS SDK version 7.5.4, a change has been implemented that causes previously suppressed Handled Exception events to be reported.
-</Callout>
 
-<Callout variant="important">
-Please update to New Relic iOS agent 7.5.8. In iOS SDK version 7.5.7, a change has was implemented that could cause a crash on agent launch in some cases. A fix was implemented in our New Relic iOS agent 7.5.8 release.
+Please update to New Relic iOS agent 7.5.8. We've identified a bug in iOS SDK version 7.5.7 that could cause a crash on agent launch, and a fix is included in the New Relic iOS agent 7.5.8 release.
 </Callout>
 
 ## Fixed in this release