Fix hangup on no internet

lib/ESP32Ping/README.md

@@ -0,0 +1,47 @@
+# ESP32Ping
+Let the ESP32Ping ping a remote machine.
+
+#Note that this is a port from https://github.com/dancol90/ESP8266Ping
+With this library an ESP32Ping can ping a remote machine and know if it's reachable.
+It provide some basic measurements on ping messages (avg response time).
+
+## Usage
+
+First, include the library in your sketch along with WiFi library:
+
+```Arduino
+#include <WiFi.h>
+#include <ESP32Ping.h>
+```
+
+Next, simply call the `Ping.ping()` function
+
+```Arduino
+IPAddress ip (192, 168, 0, 1); // The remote ip to ping
+bool ret = Ping.ping(ip);
+```
+
+`ret` will be true if the remote responded to pings, false if not reachable.
+The library supports hostname too, just pass a string instead of the ip address:
+
+```Arduino
+bool ret = Ping.ping("www.google.com");
+```
+
+Additionally, the function accept a second integer parameter `count` that specify how many pings has to be sent:
+
+```Arduino
+bool ret = Ping.ping(ip_or_host, 10);
+```
+
+After `Ping.ping()` has been called, the average response time (in milliseconds) can be retrieved with
+
+```Arduino
+float avg_time_ms = Ping.averageTime();
+```
+## Fixed in 1.3
+Memory leak bug ( https://github.com/marian-craciunescu/ESP32Ping/issues/4 )
+## Fixed in 1.4
+averageTime changed from `int` to `float`.Expect the code to still work , but you should upgrade 
+## Fixed in 1.5
+Fixed counters data. (Any review and testing is welcomed)