Clarified comments and debug messages in WiFiClient Example (#2389)

* Clarified comments and debug messages

Made debug messages and comments easier to understand/grammatical fixes

* few more fixes

libraries/WiFi/examples/WiFiClientBasic/WiFiClientBasic.ino

@@ -18,7 +18,7 @@ void setup()
 
     Serial.println();
     Serial.println();
-    Serial.print("Wait for WiFi... ");
+    Serial.print("Waiting for WiFi... ");
 
     while(WiFiMulti.run() != WL_CONNECTED) {
         Serial.print(".");
@@ -39,32 +39,30 @@ void loop()
     const uint16_t port = 80;
     const char * host = "192.168.1.1"; // ip or dns
 
-
-
-    Serial.print("connecting to ");
+    Serial.print("Connecting to ");
     Serial.println(host);
 
     // Use WiFiClient class to create TCP connections
     WiFiClient client;
 
     if (!client.connect(host, port)) {
-        Serial.println("connection failed");
-        Serial.println("wait 5 sec...");
+        Serial.println("Connection failed.");
+        Serial.println("Waiting 5 seconds before retrying...");
         delay(5000);
         return;
     }
 
-    // This will send the request to the server
-    client.print("Send this data to server");
+    // This will send a request to the server
+    client.print("Send this data to the server");
 
-    //read back one line from server
+    //read back one line from the server
     String line = client.readStringUntil('\r');
     client.println(line);
 
-    Serial.println("closing connection");
+    Serial.println("Closing connection.");
     client.stop();
 
-    Serial.println("wait 5 sec...");
+    Serial.println("Waiting 5 seconds before restarting...");
     delay(5000);
 }