Fix markup error in telemetry-micrometer guide

Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit 436ac7b)

docs/src/main/asciidoc/telemetry-micrometer.adoc

@@ -606,7 +606,7 @@ class, method, and exception (either "none" or the simple class name of a detect
 Parameters to `@Counted` and `@Timed` can be annotated with `@MeterTag` to dynamically assign meaningful tag values.
 
 `MeterTag.resolver` can be used to extract a tag from a method parameter, by creating a bean
-implementing `io.micrometer.common.annotation.ValueResolver` and referring to this class: `@MeterTag(resolver=CustomResolver.class)
+implementing `io.micrometer.common.annotation.ValueResolver` and referring to this class: `@MeterTag(resolver=CustomResolver.class)`
 
 `MeterTag.expression` is also supported, but you have to implement the evaluation of the expression
 by creating a bean implementing `io.micrometer.common.annotation.ValueExpressionResolver` that can evaluate expressions.