update blood_types

subjects/blood_types/README.md

@@ -8,7 +8,7 @@ Start by copying the data representation of the blood types:
 
 - Create the enum `Antigen` that has 4 possibilities: A, B, O and AB And the enum `RhFactor` that has two possible values: Positive and Negative
 
-- After, copy the struct `BloodType` that contains two fields with the names antigen and rh_factor
+- After, create the struct `BloodType` that contains two fields with the names antigen and rh_factor
 
 - To provide a simple way to create blood types implement the trait FromStr for BloodType (which will allow us to use the `parse` method and the associated function from_str, so we can do:
 
@@ -53,12 +53,6 @@ use std::cmp::{Ord, Ordering};
 
 use std::str::FromStr;
 
-impl FromStr for Antigen {
-}
-
-impl FromStr for RhFactor {
-}
-
 impl Ord for BloodType {
 }
 

subjects/lalgebra_scalar/README.md

@@ -11,6 +11,7 @@ After finishing completing the declaration of the trait, implement the `Scalar`
 ### Notions
 
 - [Module std::ops](https://doc.rust-lang.org/std/ops/index.html)
+- [Module std::marker::Sized](https://doc.rust-lang.org/std/marker/trait.Sized.html)
 
 ### Expected Function (The signature must be completed)
 

subjects/lalgebra_vector/README.md

@@ -10,9 +10,6 @@ The dot product between two vectors of different length it's not defined
 
 Note: `Vector` must implement Debug, Clone, Eq, PartialEq.
 
-#### Important
-
-Note that in the addition of vector of the example the `Rhs` is not `Self`
 
 ### Expected Functions and Structure
 
@@ -44,7 +41,7 @@ fn main() {
 	let vector_1: Vector<i64> = Vector(vec![1, 3, -5]);
 	let vector_2: Vector<i64> = Vector(vec![4, -2, -1]);
 	println!("{:?}", vector_1.dot(&vector_2));
-	println!("{:?}", vector_1 + &vector_2);
+	println!("{:?}", vector_1 + vector_2);
 }
 ```