SEC-3080: Remove invalid characters from reference

docs/manual/src/docs/asciidoc/index.adoc

@@ -961,7 +961,7 @@ public class MultiHttpSecurityConfig {
 [[jc-method]]
 === Method Security
 
-From version 2.0 onwards Spring Security has improved support substantially for adding security to your service layer methods. It provides support for JSR-250 annotation security as well as the framework���s original @Secured annotation. From 3.0 you can also make use of new <<el-access,expression-based annotations>>. You can apply security to a single bean, using the intercept-methods element to decorate the bean declaration, or you can secure multiple beans across the entire service layer using the AspectJ style pointcuts.
+From version 2.0 onwards Spring Security has improved support substantially for adding security to your service layer methods. It provides support for JSR-250 annotation security as well as the framework's original `@Secured` annotation. From 3.0 you can also make use of new <<el-access,expression-based annotations>>. You can apply security to a single bean, using the intercept-methods element to decorate the bean declaration, or you can secure multiple beans across the entire service layer using the AspectJ style pointcuts.
 
 ==== EnableGlobalMethodSecurity