Informations about WifiClientEnterprise.ino sketch (#1737)

* informations about sketch

* Update README.md

libraries/WiFi/examples/WiFiClientEnterprise/README.md

+# ESP32-Eduroam
+* Eduroam wifi connection with university login identity
+* Working under Eduroam networks under FreeRadius service for 802.1x
+* Eduroam is using methods: PEAP + MsCHAPv2
+
+# Format
+* IDENTITY = nickname@university.domain
+* PASSWORD = your password
+
+# Usage
+* Change IDENTITY
+* Change password
+* Upload sketch and enjoy!
+* After sucessful assign of IP address, board will connect to HTTP page on internet to verify your authentification
+
+# Tested locations
+* Technical University in Košice (Slovakia) - Working
+* Slovak Technical University in Bratislava (Slovakia) - Working
+* University of Antwerp (Belgium) - Working
+* UPV Universitat Politècnica de València (Spain) - Working
+* Local RADIUS network under Linux Zeroshell - Unsuccessful connection
+
+# Sucessful connection example
+ ![alt text](https://i.nahraj.to/f/24Kc.png)
+# Unsucessful connection example
+ ![alt text](https://camo.githubusercontent.com/87e47d1b27f4e8ace87423e40e8edbce7983bafa/68747470733a2f2f692e6e616872616a2e746f2f662f323435572e504e47)
+
+# Boards
+* Tested Under ESP32 Devkit v1