docs: Add shebang to comment section

Author: felix-andreas

crates/roughly/src/format.rs

@@ -1166,6 +1166,7 @@ fn parse_directive(text: &str) -> Option<Directive> {
         .and_then(|rhs| match rhs.trim() {
             "skip" => Some(Directive::Skip),
             "skip-file" => Some(Directive::SkipFile),
+            "skip file" => Some(Directive::SkipFile),
             "on" => Some(Directive::On),
             "off" => Some(Directive::Off),
             _ => None,

crates/roughly/tests/format/formatter.template.md

@@ -95,6 +95,7 @@ Comments are reformatted to ensure consistent spacing while preserving their con
 
 ```r
 # comments : compare
+#!/usr/bin/env Rscript
 #This is a comment
 #'This is roxygen
 ##This is a header
@@ -104,7 +105,7 @@ Comments are reformatted to ensure consistent spacing while preserving their con
 
 - Roxygen comments (`#'`) maintain their structure
 - Header comments (`##`, `###`) keep their formatting
-- Shebangs (`#!/usr/bin/env Rscript`) remain unchanged
+- Shebangs (`[#!/usr/bin/env Rscript](http://roughly.dev/)`) remain unchanged
 - Comments with quotes (`#'quoted'`) are left as-is to avoid conflicts
 
 ### Line Spacing

crates/roughly/tests/snapshots/test_format__documentation_examples__comments.snap

@@ -2,6 +2,7 @@
 source: crates/roughly/tests/test_format.rs
 expression: code
 ---
+#!/usr/bin/env Rscript
 # This is a comment
 #' This is roxygen
 ##This is a header

docs/content/formatter.md

@@ -119,11 +119,13 @@ Comments are reformatted to ensure consistent spacing while preserving their con
 
 ```r
 # Before formatting
+#!/usr/bin/env Rscript
 #This is a comment
 #'This is roxygen
 ##This is a header
 
 # After formatting
+#!/usr/bin/env Rscript
 # This is a comment
 #' This is roxygen
 ##This is a header
@@ -133,7 +135,7 @@ Comments are reformatted to ensure consistent spacing while preserving their con
 
 - Roxygen comments (`#'`) maintain their structure
 - Header comments (`##`, `###`) keep their formatting
-- Shebangs (`#!/usr/bin/env Rscript`) remain unchanged
+- Shebangs (`[#!/usr/bin/env Rscript](http://roughly.dev/)`) remain unchanged
 - Comments with quotes (`#'quoted'`) are left as-is to avoid conflicts
 
 ### Line Spacing