Fixing Si7021_MQTT_HA

usermods/Si7021_MQTT_HA/library.json

@@ -3,6 +3,7 @@
   "build": { "libArchive": false },
   "dependencies": {
     "finitespace/BME280":"3.0.0",
-    "adafruit/Adafruit Si7021 Library" : "1.5.3"
+    "adafruit/Adafruit Si7021 Library" : "1.5.3",
+    "SPI":""
   }
 }

usermods/Si7021_MQTT_HA/readme.md

@@ -49,18 +49,8 @@ SDA_PIN = 4;
 
 ## Software
 
-Add to `build_flags` in platformio.ini:
+Add `Si7021_MQTT_HA` to custom_usermods
 
-```
-   -D USERMOD_SI7021_MQTT_HA
-```
-
-Add to `lib_deps` in platformio.ini:
-
-```
-   adafruit/Adafruit Si7021 Library @ 1.4.0
-   BME280@~3.0.0
-```
 
 # Credits