Merge pull request #4756 from corob-msft/learn/corob/arm64-epilog-count

Clarify language for arm64 epilog count

Author: prmerger-automator[bot]

docs/build/arm64-exception-handling.md

@@ -218,11 +218,11 @@ This data is broken into four sections:
 
       2. If **E** is 1, then this field specifies the index of the first unwind code that describes the one and only epilog.
 
-   f. **Code Words** is a 5-bit field that specifies the number of 32-bit words needed to contain all of the unwind codes in section 3. If more than 31 words are required (that is, if there are more than 124 unwind code bytes), then this field must be 0 to indicate that an extension word is required.
+   f. **Code Words** is a 5-bit field that specifies the number of 32-bit words needed to contain all of the unwind codes in section 3. If more than 31 words (that is, 124 unwind codes) are required, then this field must be 0 to indicate that an extension word is required.
 
    g. **Extended Epilog Count** and **Extended Code Words** are 16-bit and 8-bit fields, respectively. They provide more space for encoding an unusually large number of epilogs, or an unusually large number of unwind code words. The extension word that contains these fields is only present if both the **Epilog Count** and **Code Words** fields in the first header word are 0.
 
-1. If **Epilog Count** isn't zero, a list of information about epilog scopes, packed one to a word,  comes after the header and optional extended header. They're stored in order of increasing starting offset. Each scope contains the following bits:
+1. If the count of epilogs isn't zero, a list of information about epilog scopes, packed one to a word, comes after the header and optional extended header. They're stored in order of increasing starting offset. Each scope contains the following bits:
 
    a. **Epilog Start Offset** is an 18-bit field that has the offset in bytes, divided by 4, of the epilog relative to the start of the function.