Step 4 substitution table should note it covers {{#if FLAG}} conditionals too #10

Per the newly-codified conventions in example-skills-catalog/CONVENTIONS.md and tracked in example-h-dev-loop#1:

The Step 4 substitution table documents {{PLACEHOLDER}} substitutions but implicitly excludes {{#if FLAG}} conditionals. This caused CLAUDE_MD to be undocumented for multiple releases (create-dev-loop#5, now fixed).

Suggested fix

Add a one-sentence preamble to Step 4:

The substitution table below covers both direct substitutions ({{VAR}}) and conditional flags ({{#if VAR}}…{{/if}}). Every {{…}} token in the template — whether a value or a condition — needs a row.

This sets the expectation up front so future conditional flags are documented when they're introduced.

drafted by Claude on behalf of Daniel Stephenson