Feat: set up manual error handling.

src/main.rs

@@ -12,6 +12,16 @@ fn main() {
 
     let content = std::fs::read_to_string(&args.path).expect("Could not read file.");
 
+    let result = std::fs::read_to_string("test.txt");
+    match result {
+        Ok(content) => {
+            println!("File content: {}", content);
+        }
+        Err(error) => {
+            println!("Oh no error: {}", error);
+        }
+    }
+
     for line in content.lines() {
         if line.contains(&args.pattern) {
             println!("{}", line)