Fix: docs field sizing typo (tailwindlabs#2150)

Fixes a minor typo on the `field-sizing.mdx` and fixes the company name
so it's congruent with `hover-focus-and-other-states.mdx`

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Co-authored-by: Philipp Spiess <hello@philippspiess.com>

Author: jmmarco

src/docs/field-sizing.mdx

@@ -42,7 +42,7 @@ Use the `field-sizing-content` utility to allow a form control to adjust it's si
 
 ### Using a fixed size
 
-Use the `field-sizing-fixed` utility to make a from control use a fixed size:
+Use the `field-sizing-fixed` utility to make a form control use a fixed size:
 
 <Figure hint="Type in the input below to see the size remain the same">