Fixed Typo

instructions/1-voice-user-interface.md

@@ -16,7 +16,7 @@
 5. Select the **Custom** model at the top of the page to add to your skill and select the **Create Skill** button at the top right.
 
 6. **Build the Interaction Model for your skill**
-	1. On the left hand navigation panel. Select the **Invocation** tab. Enter a **Skill Inovcation Name**. This is the name that your users will need to say to start your skill.
+	1. On the left hand navigation panel. Select the **Invocation** tab. Enter a **Skill Invocation Name**. This is the name that your users will need to say to start your skill.
 	2. Next, select the **JSON Editor** tab. In the textfield provided, replace any existing code with the code provided in the [Interaction Model](../models/en-US.json), then click "Build Model".
 
 	**Note:** You should notice that **Intents** and **Slot Types** will auto populate based on the JSON Interaction Model that you have now applied to your skill. Feel free to explore the changes here, to learn about **Intents**, **Slots**, and **Utterances** open our [technical documentation in a new tab](https://developer.amazon.com/docs/custom-skills/define-the-interaction-model-in-json-and-text.html).