fix docs

README.md

@@ -1,2 +1,18 @@
 # untildify
 Utility to replace ~ with user home directory
+
+## Example
+
+```rust
+extern crate untildify;
+
+fn main() {
+  println!("Untildify : {}", untildify::untildify("~/Desktop"));
+  // prints /Users/<user_name>/Desktop
+  
+  // Other Examples
+  // assert_eq!(untildify("~/a/b/c/d/e"), "/User/Untildify/a/b/c/d/e");
+  // assert_eq!(untildify("~/"), "/User/Untildify/");
+}
+
+```

src/lib.rs

@@ -2,6 +2,20 @@ use regex::Regex;
 use std::env;
 use std::path::PathBuf;
 
+/// Convert a tilde path to an absolute path: ~/Desktop → /Users/sathish/Desktop
+/// 
+/// Example
+/// 
+/// ```
+/// use untildify::untildify;
+/// 
+/// fn main() {
+///    println!("Untildify : {}", untildify::untildify("~/Desktop")); // prints /Users/<user_name>/Desktop
+///    println!("Untildify : {}", untildify("~/a/b/c/d/e")); // prints "/User/Untildify/a/b/c/d/e"
+///    println!("Untildify : {}", untildify("~/")); // prints "/User/Untildify/"
+/// }
+/// ```
+
 pub fn untildify(input_path: &str) -> String {
     if input_path.is_empty() {
         return String::from(input_path);