fix: correct , to .

en/src/lifetime/advance.md

@@ -39,7 +39,7 @@ fn main() {
 }
 ```
 
-1,🌟
+1. 🌟
 ```rust,editable
 /* Annotate struct with lifetime:
 1. `r` and `s` must have different lifetimes
@@ -55,7 +55,7 @@ fn main() {
 ```
 
 
-2,🌟🌟
+2. 🌟🌟
 ```rust,editable
 /* Adding trait bounds to make it work */
 struct ImportantExcerpt<'a> {
@@ -74,7 +74,7 @@ fn main() {
 }
 ```
 
-3,🌟🌟
+3. 🌟🌟
 ```rust,editable
 /* Adding trait bounds to make it work */
 fn f<'a, 'b>(x: &'a i32, mut y: &'b i32) {
@@ -100,7 +100,7 @@ and could then be used to compare a `&'a T` with any lifetime to an `i32`.
 
 Only a higher-ranked bound can be used here, because the lifetime of the reference is shorter than any possible lifetime parameter on the function.
 
-4,🌟🌟🌟
+4. 🌟🌟🌟
 ```rust,editable
 /* Adding HRTB to make it work!*/
 fn call_on_ref_zero<'a, F>(f: F) where F: Fn(&'a i32) {
@@ -187,7 +187,7 @@ fn main() {
 ```
 
 
-5,🌟🌟
+5. 🌟🌟
 ```rust,editable
 /* Make it work by reordering some code */
 fn main() {
@@ -235,7 +235,7 @@ struct Ref<'a, T> {
 
 ## A difficult exercise
 
-6,🌟🌟🌟🌟
+6. 🌟🌟🌟🌟
 ```rust,editable
 /* Make it work */
 struct Interface<'a> {

en/src/lifetime/static.md

@@ -32,7 +32,7 @@ fn need_static(r : &'static str) {
 }
 ```
 
-2, 🌟🌟🌟🌟 Another way to make `'static` lifetime is using `Box::leak`
+2. 🌟🌟🌟🌟 Another way to make `'static` lifetime is using `Box::leak`
 ```rust,editable
 #[derive(Debug)]
 struct Config {
@@ -59,7 +59,7 @@ fn main() {
 }
 ```
 
-3, 🌟 `&'static` only indicates that the data can live forever, not the reference. The latter one will be constrained by its scope.
+3. 🌟 `&'static` only indicates that the data can live forever, not the reference. The latter one will be constrained by its scope.
 ```rust,editable
 fn main() {
     {
@@ -75,7 +75,7 @@ fn main() {
 }
 ```
 
-4, `&'static` can be coerced to a shorter lifetime.
+4. `&'static` can be coerced to a shorter lifetime.
 
 **Example**
 ```rust,editable
@@ -112,7 +112,7 @@ As a trait bound, it means the type does not contain any non-static references.
 It's important to understand this means that any owned data always passes a `'static `lifetime bound, but a reference to that owned data generally does not.
 
 
-5,🌟🌟
+5. 🌟🌟
 ```rust,editable
 /* Make it work */
 use std::fmt::Debug;
@@ -147,7 +147,7 @@ fn main() {
 ```
 
 
-6,🌟🌟🌟
+6. 🌟🌟🌟
 ```rust,editable
 use std::fmt::Display;