[Form] Fix two typo errors (#2879)

* Fix two typos

- browser
- submitting

* Update UNRELEASED.md

Co-Authored-By: Kaelig Deloumeau-Prigent <[email protected]>

Co-authored-by: Kaelig Deloumeau-Prigent <[email protected]>

Author: davidpgero

UNRELEASED.md

@@ -8,6 +8,8 @@
 
 ### Documentation
 
+- Fixed two typos in the `Form` documentation ([#2879](https://github.com/Shopify/polaris-react/pull/2879))
+
 ### Development workflow
 
 ### Dependency upgrades

src/components/Form/Form.tsx

@@ -17,11 +17,11 @@ export interface FormProps {
   acceptCharset?: string;
   /** Where to send form-data on submittal */
   action?: string;
-  /** Grants the broswer the ability to autocomplete input elements */
+  /** Grants the browser the ability to autocomplete input elements */
   autoComplete?: boolean;
   /** The content to display inside the form. */
   children?: React.ReactNode;
-  /** Media type when submiting content to server */
+  /** Media type when submitting content to server */
   encType?: Enctype;
   /** Toggles if form submits on Enter keypress. Defaults to true. */
   implicitSubmit?: boolean;