diff --git a/README.md b/README.md
index 82ec82c..fbd0937 100644
--- a/README.md
+++ b/README.md
@@ -16,12 +16,12 @@ This goal of this project is to help you get better at Angular and NgRx buy reso
 
 <img src="https://img.shields.io/badge/Angular--red?logo=angular" alt="Angular"/>
 
-<a href="./apps/projection/README.md" target="_blank"><img src="https://img.shields.io/badge/1-Projection-red" alt="Projection"/></a>
-<a href="./apps/ngfor-enhancement/README.md" target="_blank"><img src="https://img.shields.io/badge/2-Directive enhancement-red" alt="Directive enhancemen"/></a>
+<a href="./apps/projection/README.md"><img src="https://img.shields.io/badge/1-Projection-red" alt="Projection"/></a>
+<a href="./apps/ngfor-enhancement/README.md"><img src="https://img.shields.io/badge/2-Directive enhancement-red" alt="Directive enhancemen"/></a>
 
 <img src="https://img.shields.io/badge/NgRx--blueviolet" alt="NgRx"/>
 
-<a href="./apps/ngrx-1/README.md" target="_blank"><img src="https://img.shields.io/badge/1-effect vs selector-blueviolet" alt="Effect vs Selector"/></a>
+<a href="./apps/ngrx-1/README.md"><img src="https://img.shields.io/badge/1-effect vs selector-blueviolet" alt="Effect vs Selector"/></a>
 
 ## License
 
diff --git a/apps/projection/README.md b/apps/projection/README.md
index 6bf70d3..d99b97d 100644
--- a/apps/projection/README.md
+++ b/apps/projection/README.md
@@ -22,8 +22,8 @@ Implement the City card.
 6. Commit your work
 7. Submit a PR with a title beginning with **Answer:1** that I will review and other dev can review.
 
-<a href="https://github.com/tomalaforge/angular-challenges/pulls?q=label%3A1+label%3Aanswer" target="_blank"><img src="https://img.shields.io/badge/-Solutions-green" alt="Projection solution"/></a>
-<a href='https://github.com/tomalaforge/angular-challenges/pulls?q=label%3A1+label%3A"answer+author"' target="_blank"><img src="https://img.shields.io/badge/-Author solution-important" alt="Projection solution author"/></a>
-<a href="https://medium.com/@thomas.laforge/create-a-highly-customizable-component-cc3a9805e4c5"><img src="https://img.shields.io/badge/-Blog post explanation-blue" alt="Projection blog article"/></a>
+<a href="https://github.com/tomalaforge/angular-challenges/pulls?q=label%3A1+label%3Aanswer"><img src="https://img.shields.io/badge/-Solutions-green" alt="Projection solution"/></a>
+<a href='https://github.com/tomalaforge/angular-challenges/pulls?q=label%3A1+label%3A"answer+author"'><img src="https://img.shields.io/badge/-Author solution-important" alt="Projection solution author"/></a>
+<a href="https://medium.com/@thomas.laforge/create-a-highly-customizable-component-cc3a9805e4c5" target="_blank" rel="noopener noreferrer"><img src="https://img.shields.io/badge/-Blog post explanation-blue" alt="Projection blog article"/></a>
 
-_You can ask any question on_ <a href="https://twitter.com/laforge_toma" target="_blank"><img src="./../../logo/twitter.svg" height=20px alt="twitter"/></a>
+_You can ask any question on_ <a href="https://twitter.com/laforge_toma" target="_blank" rel="noopener noreferrer"><img src="./../../logo/twitter.svg" height=20px alt="twitter"/></a>