Czechitas Ostrava: Change dates

Author: frenzymadness

runs/2018/czechitas-ostrava-jaro/info.yml

@@ -56,7 +56,7 @@ plan:
     type: lesson
 - title: Slovníky, soubory, JSON
   slug: dict-files
-  date: 2018-02-15
+  date: 2018-02-20
   materials:
   - lesson: beginners/dict
     type: lesson
@@ -66,7 +66,7 @@ plan:
     type: lesson
 - title: Moduly a výjimky
   slug: modules
-  date: 2018-02-20
+  date: 2018-02-22
   materials:
   - lesson: beginners/exceptions
     type: lesson