Fixed mistakes and missing semicolon in tupal

en/src/compound-types/tuple.md

@@ -6,29 +6,29 @@ fn main() {
     let _t0: (u8,i16) = (0, -1);
     // Tuples can be tuple's members
     let _t1: (u8, (i16, u32)) = (0, (-1, 1));
-    // fill the blanks to make the code work
+    // Fill the blanks to make the code work
     let t: (u8, __, i64, __, __) = (1u8, 2u16, 3i64, "hello", String::from(", world"));
 
-    println!("Success!")
+    println!("Success!");
 }
 ```
 
 2. 🌟 Members can be extracted from the tuple using indexing.
 ```rust,editable
 
-// make it works
+// Make it work
 fn main() {
     let t = ("i", "am", "sunface");
     assert_eq!(t.1, "sunface");
 
-    println!("Success!")
+    println!("Success!");
 }
 ```
 
 3. 🌟 Long tuples  cannot be printed
 ```rust,editable
 
-// fix the error
+// Fix the error
 fn main() {
     let too_long_tuple = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13);
     println!("too long tuple: {:?}", too_long_tuple);
@@ -41,14 +41,14 @@ fn main() {
 fn main() {
     let tup = (1, 6.4, "hello");
 
-    // fill the blank to make the code work
+    // Fill the blank to make the code work
     let __ = tup;
 
     assert_eq!(x, 1);
     assert_eq!(y, "hello");
     assert_eq!(z, 6.4);
 
-    println!("Success!")
+    println!("Success!");
 }
 ```
 
@@ -57,14 +57,14 @@ fn main() {
 fn main() {
     let (x, y, z);
 
-    // fill the blank
+    // Fill the blank
     __ = (1, 2, 3);
     
     assert_eq!(x, 3);
     assert_eq!(y, 1);
     assert_eq!(z, 2);
 
-    println!("Success!")
+    println!("Success!");
 }
 ```
 
@@ -72,13 +72,13 @@ fn main() {
 ```rust,editable
 
 fn main() {
-    // fill the blank, need a few computations here.
+    // Fill the blank, need a few computations here.
     let (x, y) = sum_multiply(__);
 
     assert_eq!(x, 5);
     assert_eq!(y, 6);
 
-    println!("Success!")
+    println!("Success!");
 }
 
 fn sum_multiply(nums: (i32, i32)) -> (i32, i32) {