Fix some things.

01.curriculum/01.physics-chemistry-biology/topic.en.md

@@ -2,9 +2,9 @@
 title: 'From my perceptions of the external world,<br>To physics, chemistry, biology, and to industrial and environmental sciences<br><br>'
 media_order: sciences_400_2400_web.jpg
 slug: physics-chemistry-biology
-<!--content:
-    items: '@self.modular'
-    order:
-        by: ''
-        dir: ''-->
+#content:
+#    items: '@self.modular'
+#    order:
+#        by: ''
+#        dir: ''
 ---

10.brainstorming-innovative-courses/intercambio-curso-electromagnetismo/textbook.en.md

@@ -1,5 +1,5 @@
 ---
-title : 'brainstorming electromagnetism"
+title : "brainstorming electromagnetism"
 published : false
 visible : false
 ---

10.brainstorming-innovative-courses/textbook.en.md

@@ -1,7 +1,7 @@
 ---
 title: 'Brainstorming for innovative curriculum and courses'
-published: false
 slug: brainstorming-courses
+published: false
 visible: false
 ---