Consider rearranging section for readability and to remove duplicated callout to FHIR naming conventions

Existing Wording:

Item names SHOULD follow FHIR naming guidance. All names MUST be between 1 and 255 characters. Alias names SHOULD begin with $, otherwise, names MUST begin with an uppercase letter and contain only letters, numbers, and underscores (“_”).

By convention, item names SHOULD use PascalCase (also known as UpperCamelCase). Slice names and local slice names for extensions SHOULD use lower camelCase. These conventions are consistent with FHIR naming conventions.

Beginning alias names with $ is a good practice, since this convention allows for additional error checking (see Defining Aliases for details).

Note: Instances have identifiers rather than names, so instance declarations should follow the recommendations for Item Identifiers.

Proposed Wording:

All names MUST be between 1 and 255 characters.

Alias names SHOULD begin with $, otherwise, names MUST begin with an uppercase letter and contain only letters, numbers, and underscores (“_”). Beginning alias names with $ is a good practice, since this convention allows for additional error checking (see Defining Aliases for details).

Other names SHOULD follow FHIR naming guidance, including:

• item names SHOULD use PascalCase (also known as UpperCamelCase)
• slice names and local slice names for extensions SHOULD use lower camelCase

Note: Instances have identifiers rather than names, so instance declarations should follow the recommendations for Item Identifiers.

(Comment 34 - imported by: Ron G. Parker)