Update library to prepare the release

Author: ostaquet

library.properties

@@ -1,8 +1,8 @@
 name=SIM800L HTTP connector
-version=1.13.1
+version=1.13.2
 author=Olivier Staquet
 maintainer=Olivier Staquet
-sentence=Library for GSM/GPRS module SIMCom SIM800L to make HTTP/S connections with GET and POST methods. 
+sentence=Library for GSM/GPRS module SIMCom SIM800L to make HTTP/S connections with GET and POST methods.
 paragraph=This library supports power management, network registration, signal check, GPRS connectivity, HTTP/HTTPS protocols, GET/POST methods and software/hardware serials.
 category=Communication
 url=https://github.com/ostaquet/Arduino-SIM800L-driver