Update README.md

README.md

@@ -42,7 +42,7 @@ The current virtual accessories provided are:
 -   **Lock.** This was just low hanging fruit. Generates a HomeKit notification when the accessory's state changes. It also creates a Home Key card in the Wallet app.
 -   **Window Covering.** These are blinds and shades. This was created for a user that wanted to use "Siri open/close .." to control their automation, as opposed to "Siri on/off .." as would be required with switches.
 -   **Valve** - Allows you to create different types of valves: generic, irrigation, shower head, or water faucet.
--   **Sensor.** Allows you to create different types of sensors. Sensors will generate notifications when their state changes, if configured in the Home app. Some types of notifications classified as `critical` by Homekit are allowed to bypass Do Not Disturb and allowed to appear in CarPlay. Sensors can be activated by different triggers. Currently, they options are:
+-   **Sensor.** Allows you to create different types of sensors. Sensors will generate notifications when their state changes, if configured in the Home app. Some types of notifications classified as `critical` by Homekit are allowed to bypass Do Not Disturb and allowed to appear in CarPlay. Sensors can be activated by different triggers. Currently, the options are:
     - Host Ping trigger. Pings a network host. It is actvated after 3 failed ping attempts. The sensor resets when ping is successful.
     - Cron trigger. Activates the sensor when the time and date match the schedule deascribed by the cron expression. The sensor resets after a brief delay.
     - Switch trigger. To trigger a sensor from a switch, create a switch with a companion sensor. A future release may provide the ability to create this pairing as a sensor with a switch as a trigger.