Merge pull request #159 from diplodoc-platform/DOCSUP-111015.diplodoc-contributors-mobile-2

Docsup 111015.diplodoc contributors mobile 2

Author: elistratovamaria

en/for-contributors.yaml

@@ -7,7 +7,8 @@ blocks:
   - type: card-layout-block
     title: How to participate
     colSizes:
-      all: 6
+      all: 12
+      sm: 6
     children:
 
       - type: basic-card

ru/dev/for-contributors.yaml

@@ -22,7 +22,8 @@ blocks:
   - type: card-layout-block
     title: Как принять участие
     colSizes:
-      all: 6
+      all: 12
+      sm: 6
     children:
 
       - type: basic-card