Update textbook.en.md

00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/05.classical-mechanics/vector-analysis/textbook.en.md

@@ -15,12 +15,12 @@ graph TD;
 
 ```mermaid
 graph TD;
-    write_courses_with_m3p2-->display_in_website;
-    write_courses_with_m3p2-->create_customized_pdf;
-    write_courses_with_m3p2-->use_in_videoprojection;
-    display_in_website-->student;
-    create_customized_pdf-->student;
-    use_in_videoprojection-->student;
+    write_courses_with_m3p2-->mirar_en_internet;
+    write_courses_with_m3p2-->imprimir_pdf_personalizado;
+    write_courses_with_m3p2-->usar_con_videoproyector;
+    mirar_en_internet-->estudiante;
+    imprimir_pdf_personalizado-->estudiante;
+    usar_con_videoproyector;-->estudiante;
 ```
 <br>