added option2

exercises/option/option2.rs

@@ -0,0 +1,21 @@
+// option2.rs
+// Make me compile! Execute `rustlings hint option2` for hints
+
+// I AM NOT DONE
+
+fn main() {
+    let optional_value = String::from("rustlings");
+    if let Some(value) = optional_value {
+        println!("the value of optional value is: {}", value);
+    } else {
+        println!("optional value does not have a value!");
+    }
+
+    let mut optional_values_vec: Vec<Option<i8>> = Vec::new();
+    for x in 1..10 {
+        optional_values_vec.push(x);
+    }
+    while let Some(Some(value)) = optional_values_vec.pop() {
+        println!("current value: {}", value);
+    }
+}

info.toml

@@ -534,6 +534,16 @@ and:
 pattern matching
 """
 
+[[exercises]]
+name = "option2"
+path = "exercises/option/option2.rs"
+mode = "compile"
+hint = """
+check out:
+https://doc.rust-lang.org/rust-by-example/flow_control/if_let.html
+https://doc.rust-lang.org/rust-by-example/flow_control/while_let.html
+"""
+
 [[exercises]]
 name = "result1"
 path = "exercises/error_handling/result1.rs"