More detailed environment questions

.github/issue_template.md

@@ -6,6 +6,9 @@
 
 # Environment
 
-- mongoose version: _X.Y_
-- OS: _?_
-- Compiler/IDE: _?_
+- mongoose version (e.g. 7.3): _X.Y_
+- Compiler/IDE (e.g. arm-none-eabi-gcc 9.3): _?_
+- Target OS (e.g. FreeRTOS 10.3.1, Linux 5.8): _?_
+- Target hardware/board (e.g. STM32F411): _?_
+- Connectivity chip/module (e.g. WizNet W5500): _?_
+- Target SDK (e.g. STM32CubeF1 1.8.4): _?_