Replace special quote characters with normal ones.

content/en/docs/concepts/services-networking/service.md

@@ -33,8 +33,8 @@ Each Pod gets its own IP address, however in a Deployment, the set of Pods
 running in one moment in time could be different from
 the set of Pods running that application a moment later.
 
-This leads to a problem: if some set of Pods (call them “backends”) provides
-functionality to other Pods (call them “frontends”) inside your cluster,
+This leads to a problem: if some set of Pods (call them "backends") provides
+functionality to other Pods (call them "frontends") inside your cluster,
 how do the frontends find out and keep track of which IP address to connect
 to, so that the frontend can use the backend part of the workload?
 
@@ -91,7 +91,7 @@ spec:
       targetPort: 9376
 ```
 
-This specification creates a new Service object named “my-service”, which
+This specification creates a new Service object named "my-service", which
 targets TCP port 9376 on any Pod with the `app=MyApp` label.
 
 Kubernetes assigns this Service an IP address (sometimes called the "cluster IP"),
@@ -100,7 +100,7 @@ which is used by the Service proxies
 
 The controller for the Service selector continuously scans for Pods that
 match its selector, and then POSTs any updates to an Endpoint object
-also named “my-service”.
+also named "my-service".
 
 {{< note >}}
 A Service can map _any_ incoming `port` to a `targetPort`. By default and
@@ -319,7 +319,7 @@ falls back to running in iptables proxy mode.
 
 ![Services overview diagram for IPVS proxy](/images/docs/services-ipvs-overview.svg)
 
-In these proxy models, the traffic bound for the Service’s IP:Port is
+In these proxy models, the traffic bound for the Service's IP:Port is
 proxied to an appropriate backend without the clients knowing anything
 about Kubernetes or Services or Pods.
 
@@ -447,7 +447,7 @@ You can find more information about `ExternalName` resolution in
 ## Headless Services
 
 Sometimes you don't need load-balancing and a single Service IP.  In
-this case, you can create what are termed “headless” Services, by explicitly
+this case, you can create what are termed "headless" Services, by explicitly
 specifying `"None"` for the cluster IP (`.spec.clusterIP`).
 
 You can use a headless Service to interface with other service discovery mechanisms,
@@ -685,7 +685,7 @@ metadata:
 ```yaml
 [...]
 metadata:
-  annotations:  
+  annotations:
     service.kubernetes.io/qcloud-loadbalancer-internal-subnetid: subnet-xxxxx
 [...]
 ```
@@ -694,7 +694,7 @@ metadata:
 ```yaml
 [...]
 metadata:
-  annotations:  
+  annotations:
     service.beta.kubernetes.io/alibaba-cloud-loadbalancer-address-type: "intranet"
 [...]
 ```
@@ -948,25 +948,25 @@ There are other annotations for managing Cloud Load Balancers on TKE as shown be
 
         # ID of an existing load balancer
         service.kubernetes.io/tke-existed-lbid：lb-6swtxxxx
-        
+
         # Custom parameters for the load balancer (LB), does not support modification of LB type yet
         service.kubernetes.io/service.extensiveParameters: ""
-        
-        # Custom parameters for the LB listener 
+
+        # Custom parameters for the LB listener
         service.kubernetes.io/service.listenerParameters: ""
-        
+
         # Specifies the type of Load balancer;
         # valid values: classic (Classic Cloud Load Balancer) or application (Application Cloud Load Balancer)
         service.kubernetes.io/loadbalance-type: xxxxx
 
-        # Specifies the public network bandwidth billing method; 
+        # Specifies the public network bandwidth billing method;
         # valid values: TRAFFIC_POSTPAID_BY_HOUR(bill-by-traffic) and BANDWIDTH_POSTPAID_BY_HOUR (bill-by-bandwidth).
         service.kubernetes.io/qcloud-loadbalancer-internet-charge-type: xxxxxx
 
         # Specifies the bandwidth value (value range: [1,2000] Mbps).
         service.kubernetes.io/qcloud-loadbalancer-internet-max-bandwidth-out: "10"
 
-        # When this annotation is set，the loadbalancers will only register nodes 
+        # When this annotation is set，the loadbalancers will only register nodes
         # with pod running on it, otherwise all nodes will be registered.
         service.kubernetes.io/local-svc-only-bind-node-with-pod: true
 ```
@@ -1115,7 +1115,7 @@ connections on it.
 
 When a client connects to the Service's virtual IP address, the iptables
 rule kicks in, and redirects the packets to the proxy's own port.
-The “Service proxy” chooses a backend, and starts proxying traffic from the client to the backend.
+The "Service proxy" chooses a backend, and starts proxying traffic from the client to the backend.
 
 This means that Service owners can choose any port they want without risk of
 collision.  Clients can simply connect to an IP and port, without being aware