Merge pull request #325 from per1234/explain-esp8266-dependency-version

Add comment to "Compile Examples" workflow re: `esp8266:esp8266` version

Author: per1234

.github/workflows/compile-examples.yml

@@ -157,6 +157,7 @@ jobs:
               # Install ESP8266 platform via Boards Manager
               - name: esp8266:esp8266
                 source-url: https://arduino.esp8266.com/stable/package_esp8266com_index.json
+                # Use the version currently installed in Arduino Cloud
                 version: 2.5.0
             libraries:
             sketch-paths: