Fix typo & Code optimization

spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/discovery/PolarisDiscoveryHandler.java

@@ -92,7 +92,7 @@ public class PolarisDiscoveryHandler {
 	 *
 	 * @return service list
 	 */
-	public ServicesResponse GetServices() {
+	public ServicesResponse getServices() {
 		String namespace = polarisDiscoveryProperties.getNamespace();
 		GetServicesRequest request = new GetServicesRequest();
 		request.setNamespace(namespace);

spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/discovery/PolarisServiceDiscovery.java

@@ -67,10 +67,10 @@ public class PolarisServiceDiscovery {
 	 * @throws PolarisException polarisException
 	 */
 	public List<String> getServices() throws PolarisException {
-		if (CollectionUtils.isEmpty(polarisDiscoveryHandler.GetServices().getServices())) {
+		if (CollectionUtils.isEmpty(polarisDiscoveryHandler.getServices().getServices())) {
 			return Collections.emptyList();
 		}
-		return polarisDiscoveryHandler.GetServices().getServices().stream()
+		return polarisDiscoveryHandler.getServices().getServices().stream()
 				.map(ServiceInfo::getService).collect(Collectors.toList());
 	}
 }

spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/config/PolarisRateLimitPropertiesAutoConfiguration.java

@@ -20,9 +20,9 @@ package com.tencent.cloud.polaris.ratelimit.config;
 import com.tencent.cloud.polaris.context.ConditionalOnPolarisEnabled;
 
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.Import;
 
 /**
  * Properties auto configuration of rate limit.
@@ -31,7 +31,7 @@ import org.springframework.context.annotation.Import;
  */
 @Configuration(proxyBeanMethods = false)
 @ConditionalOnPolarisEnabled
-@Import({PolarisRateLimitProperties.class})
+@EnableConfigurationProperties(PolarisRateLimitProperties.class)
 public class PolarisRateLimitPropertiesAutoConfiguration {
 
 	@Bean

spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/constant/RateLimitConstant.java

@@ -35,7 +35,7 @@ public final class RateLimitConstant {
 	/**
 	 * Info of rate limit.
 	 */
-	public static String QUOTA_LIMITED_INFO = "The request is deny by rate limit because the throttling threshold is reached";
+	public static String QUOTA_LIMITED_INFO = "The request is denied by rate limit because the throttling threshold is reached";
 
 	/**
 	 * The build in label method.