[docs] Fix a few Base typos

docs/data/base/components/button/button.md

@@ -32,7 +32,7 @@ export default function MyApp() {
 
 ### Basics
 
-`ButtonUnstyled` behaves similarly to the native HTML `<button>`, so it wraps around the text that will be displayed on its surface.
+`ButtonUnstyled` behaves similar to the native HTML `<button>`, so it wraps around the text that will be displayed on its surface.
 
 The following demo shows how to create and style two basic buttons.
 Notice that the second button cannot be clicked due to the `disabled` prop:

docs/data/base/components/form-control/form-control.md

@@ -7,7 +7,7 @@ githubLabel: 'component: FormControl'
 
 # Unstyled form control
 
-<p class="description">The FormControlUnstyled component is a utility that lets you associate a form input with auxillary components, such as labels, error indicators, or helper text.</p>
+<p class="description">The FormControlUnstyled component is a utility that lets you associate a form input with auxiliary components, such as labels, error indicators, or helper text.</p>
 
 ## Introduction
 

docs/data/base/components/slider/slider.md

@@ -36,7 +36,7 @@ export default function MyApp() {
 ### Basics
 
 The following demo shows how to create and style two basic sliders.
-Notice that both are set to a default value of 10 with the `defaultValue` prop, and the the second slider cannot be adjusted due to the `disabled` prop:
+Notice that both are set to a default value of 10 with the `defaultValue` prop, and the second slider cannot be adjusted due to the `disabled` prop:
 
 {{"demo": "UnstyledSlider.js", "defaultCodeOpen": false}}