DOC Use backticks in 4.11.0-beta1 changelog

docs/en/04_Changelogs/beta/4.11.0-beta1.md

@@ -149,7 +149,7 @@ To view which dependencies require `silverstripe/graphql`, run this composer com
 
 ## Adding support for PHP 8.1{#php81}
 
-The Silverstripe CMS recipe now officially supports PHP 8.1. This version of PHP introduced various deprecation warnings, most notably when passing null arguments to many native PHP functions. Silverstripe CMS now makes liberal use of the null coalescing operator when calling native PHP functions to convert null arguments to scalars. Other changes including adding the __serialize and __unserialize methods to classes implementing the Serializable interface and adding the \[#\ReturnTypeWillChange\] attribute to methods on classes implementing various PHP interfaces such as Iterator.
+The Silverstripe CMS recipe now officially supports PHP 8.1. This version of PHP introduced various deprecation warnings, most notably when passing null arguments to many native PHP functions. Silverstripe CMS now makes liberal use of the null coalescing operator when calling native PHP functions to convert null arguments to scalars. Other changes including adding the `__serialize` and `__unserialize` methods to classes implementing the `Serializable` interface and adding the `[#\ReturnTypeWillChange]` attribute to methods on classes implementing various PHP interfaces such as `Iterator`.
 
 ## Dropping support for PHP 7.3{#php73}