Handbook: Update note about sentence case + step numbers (#25415)

Discussed w/ @noahtalerman, concluded that capitalization makes sense in
this case.

handbook/company/why-this-way.md

@@ -313,7 +313,7 @@ In sentence case, we write and capitalize words as if they were in sentences:
 
 > Ask questions about your servers, containers, and laptops running Linux, Windows, and macOS
 
-As we use sentence case, only the first word is capitalized. But, if a word would normally be capitalized in the sentence (e.g., a proper noun, an acronym, or a stylization) it should remain capitalized. User roles (e.g., "observer" or "maintainer") and features (e.g. "automations") in the Fleet product aren't treated as proper nouns and shouldn't be capitalized. Words/phrases that follow steps numbers (e.g. "Step 1: create") in the documentation shouldn't be capitalized.
+As we use sentence case, only the first word is capitalized. But, if a word would normally be capitalized in the sentence (e.g., a proper noun, an acronym, or a stylization) it should remain capitalized. User roles (e.g., "observer" or "maintainer") and features (e.g. "automations") in the Fleet product aren't treated as proper nouns and shouldn't be capitalized. However, words/phrases that follow step numbers in the documentation _should_ be capitalized (e.g. "Step 1: Create"), since the step number is merely acting as a label for the phrase that follows.
 
 The reason for sentence case at Fleet is that everyone capitalizes differently in English, and capitalization conventions have not been taught very consistently in schools.  Sentence case simplifies capitalization rules so that contributors can deliver more natural, even-looking content with a voice that feels similar no matter where you're reading it.