Update textbook.en.md

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

@@ -81,15 +81,8 @@ graph LR
 
 ```mermaid
 graph LR
-  subgraph M3P2 ordenador personal
-    Propios cursos[Propios cursos]
-    M3P2 cursos[M3P2 cursos]
-    Website[Website]
-    Pipeline[Pipeline]
-  end
-  subgraph M3P2 servidor
-    Propios cursos[Propios cursos]
-    M3P2 cursos[M3P2 cursos]
+  subgraph M3P2
+    Cursos[Cursos]
     Website[Website]
     Pipeline[Pipeline]
   end
@@ -98,29 +91,10 @@ graph LR
   Estudiante((Estudiante))
 
   Estudiante --> |reads| Website
-  Profesor --> |escribe| Propios cursos
-  Profesor --> |participa en| M3P2 cursos
-  M3P2 cursos --> |triggers| Pipeline
-  Pipeline --> |updates| Website
-```
-<br>
-
-```mermaid
-graph LR
-  subgraph M3P2
-    File[File]
-    Website[Website]
-    Pipeline[Pipeline]
-  end
-
-  Teacher((Teacher))
-  Student((Student))
-
-  Student --> |reads| Website
-  Teacher --> |edits| File
-  File --> |triggers| Pipeline
+  Profesor --> |edits| Cursos
+  Cursos --> |triggers| Pipeline
   Pipeline --> |updates| Website
-```
+  ```