fix some chinglesh

src/basic-types/numbers.md

@@ -91,7 +91,7 @@ fn main() {
 }
 ```
 
-8. 🌟🌟 use two ways to make it work
+1. 🌟🌟 make it work in two distinct ways
 
 ```rust,editable
 
@@ -101,7 +101,7 @@ fn main() {
 ```
 
 ### Range
-9. 🌟🌟 two targets: 1. modify `assert!` to make it work 2. make `println!` output: 97 - 122
+9. 🌟🌟 two goals: 1. modify `assert!` to make it work 2. make `println!` output: 97 - 122
 
 ```rust,editable
 fn main() {

src/compound-types/string.md

@@ -18,7 +18,7 @@ fn main() {
 
 ```rust,editable
 
-// fix error with at least two ways
+// fix the error with at least two solutions
 fn main() {
    let s: Box<str> =  "hello, world".into();
    greetings(s)
@@ -94,7 +94,7 @@ Opsite to the seldom using of `str`, `&str` and `String` are used everywhere!
 🌟🌟 `&str` can be converted to `String` in two ways
 ```rust,editable
 
-// fix error with at lest two ways
+// fix error with at lest two solutions
 fn main() {
    let s =  "hello, world";
    greetings(s)
@@ -109,7 +109,7 @@ fn greetings(s: String) {
 
 ```rust,editable
 
-// use two ways to fix error and without adding new line
+// use two approaches to fix the error and without adding a new line
 fn main() {
    let s =  "hello, world".to_string();
    let s1: &str = s;

src/variables.md

@@ -94,12 +94,12 @@ fn main() {
 ```
 
 ### Unused varibles
-7. fix the warning below with :
+1. fix the warning below with :
 
-- 🌟  one way
-- 🌟🌟  two ways
+- 🌟  only one solution
+- 🌟🌟  two distinct solutions
 
-> Note: there are two ways you can use, but none of them is removing the line `let x = 1` 
+> Note: none of the solutions is to remove the line `let x = 1` 
 
 ```rust,editable