Address review comments

Author: murgatroid99

examples/keepalive/README.md

@@ -12,5 +12,5 @@ node server.js
 ## Start the client
 
 ```
-GRPC_TRACE=transport,keepalive GRPC_VERBOSITY=DEBUG client.js
+GRPC_TRACE=transport,keepalive GRPC_VERBOSITY=DEBUG node client.js
 ```

examples/keepalive/client.js

@@ -33,7 +33,7 @@ const packageDefinition = protoLoader.loadSync(
 const echoProto = grpc.loadPackageDefinition(packageDefinition).grpc.examples.echo;
 
 const keepaliveOptions = {
-  // Ping the client every 10 seconds to ensure the connection is still active
+  // Ping the server every 10 seconds to ensure the connection is still active
   'grpc.keepalive_time_ms': 10_000,
   // Wait 1 second for the ping ack before assuming the connection is dead
   'grpc.keepalive_timeout_ms': 1_000,