Update spelling section

website/docs/03_content/spelling.mdx

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+---
+slug: spelling
+title: Spelling
+description: Guidelines for using consistent spelling and terminology in the UI.
+---
+
+Use American English when writing UI copy. American English is a version of the English language used in the United States. It's sometimes called United States English or U.S. English.
+
+Certain words are spelled differently in American English and British English. You'll find some of these key spelling differences in the following sections.  
+
+## Verbs that end with 'ize' or 'yze'
+
+In American English, verbs that end with 'ize' usually end with 'ise' in British English. Similarly, verbs that end with 'yze' in American English usually end with 'yse' in British English. 
+
+| American English | British English | 
+| ------------- |:-------------:|
+| organize | organise | 
+| authorize | authorise |  
+| analyze | analyse | 
+
+## Nouns that end with 'or'
+
+In American English, nouns that end with 'or' usually end with 'our' in British English.
+
+| American English | British English | 
+| ------------- |:-------------:|
+| flavor | flavour | 
+| color | colour |  
+| behavior | behaviour | 
+
+## Nouns that end with 'ense' 
+
+In American English, nouns that end with 'ense' usually end with 'ence' in British English.
+
+| American English | British English | 
+| ------------- |:-------------:|
+| license | licence | 
+| defense | defence |  
+| pretense | pretence | 
+
+## Nouns that end with 'og' or 'ogue' 
+
+In American English, nouns that end with 'og' usually end with 'ogue' in British English.
+
+| American English | British English | 
+| ------------- |:-------------:|
+| dialog | dialogue | 
+| catalog | catalogue |  
+| epilog | epilogue |