Update configuration.adoc (#13417)

Updated command to run the application from build to start.

Co-authored-by: manojreddy <73783863+manojreddydeveloper@users.noreply.github.com>

docs/guides/src/main/server/configuration.adoc

@@ -192,7 +192,7 @@ Find available build options either by looking at the https://www.keycloak.org/s
 ==== Second step: Start Keycloak using `--optimized`
 After a successful build, you can start Keycloak and turn off the default startup behavior by invoking the following command:
 
-<@kc.build parameters="--optimized <configuration-options>"/>
+<@kc.start parameters="--optimized <configuration-options>"/>
 
 The `--optimized` parameter tells Keycloak to assume a pre-built, already optimized Keycloak image is used. As a result, Keycloak avoids checking for and running a build directly at startup to save the time to walk through this process.
 
@@ -239,4 +239,4 @@ The following are some optimizations performed by the `build` command:
 
 You can read more at the specific https://quarkus.io/guides/reaugmentation[Quarkus guide]
 
-</@tmpl.guide>
+</@tmpl.guide>