fix(memory): correct quiz Q2 answer from discontinued # prefix to /memory (#107)

The lesson quiz Q2 had `#` prefix as the correct answer for adding
memory rules, but the lesson README explicitly states this was
discontinued. Update answer to `/memory` or conversational request,
and fix a residual `#` prefix reference in the README's "Quick
update workflow" section.

Closes #106

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

.claude/skills/lesson-quiz/references/question-bank.md

@@ -101,10 +101,10 @@
 ### Q2
 - **Category**: practical
 - **Question**: How do you quickly add a new rule to memory during a conversation?
-- **Options**: A) Type `/memory add "rule text"` | B) Prefix your message with `#` (e.g., `# always use TypeScript`) | C) Type `/rule "rule text"` | D) Use `@add-memory "rule text"`
-- **Correct**: B
-- **Explanation**: The `#` prefix pattern allows quick single-rule additions during conversation. Claude will ask which memory level to save it to.
-- **Review**: Quick memory updates section
+- **Options**: A) Use the `/memory` slash command or ask conversationally | B) Prefix your message with `#` (e.g., `# always use TypeScript`) | C) Type `/rule "rule text"` | D) Use `@add-memory "rule text"`
+- **Correct**: A
+- **Explanation**: The recommended ways to add memory are the `/memory` command (opens memory files in your editor) or asking Claude conversationally (e.g., "remember that we always use TypeScript strict mode"). The `#` prefix was discontinued and no longer works.
+- **Review**: Quick memory updates section in README
 
 ### Q3
 - **Category**: conceptual

02-memory/README.md

@@ -992,7 +992,7 @@ graph LR
 
 **Quick update workflow:**
 
-1. For single rules: Use `#` prefix in conversation
+1. For single rules: Use `/memory` to open editor, or ask conversationally
 2. For multiple changes: Use `/memory` to open editor
 3. For initial setup: Use `/init` to create template