docs: add ralph add to quick reference and ralph.* placeholders to CLI reference

Closes two gaps from recent features: the quick reference was missing
ralph add commands, and the CLI reference placeholders table was missing
ralph.name, ralph.iteration, and ralph.max_iterations.

Co-authored-by: Ralphify <noreply@ralphify.co>

Author: 2 people

docs/cli.md

@@ -213,5 +213,10 @@ If a command exceeds its timeout, the process is killed and the captured output
 |---|---|
 | `{{ commands.<name> }}` | Output of the named command |
 | `{{ args.<name> }}` | Value of the named user argument |
+| `{{ ralph.name }}` | Ralph directory name (e.g. `my-ralph`) |
+| `{{ ralph.iteration }}` | Current iteration number (1-based) |
+| `{{ ralph.max_iterations }}` | Total iterations if `-n` was set, empty otherwise |
+
+`ralph.*` placeholders are automatically available — no frontmatter configuration needed.
 
 Unmatched placeholders resolve to an empty string.

docs/quick-reference.md

@@ -26,6 +26,9 @@ ralph init                         # Scaffold in current directory
 ralph new                          # AI-guided ralph creation
 ralph new docs                     # AI-guided creation with name pre-filled
 
+ralph add owner/repo               # Install ralph(s) from a GitHub repo
+ralph add owner/repo/my-ralph      # Install a specific ralph by name
+
 ralph --version                    # Show version
 ```