fix examples

Signed-off-by: Anna Khismatullina <anna.khismatullina@gmail.com>

Author: akhismat

dev/import-tool/docs/huly/example-workspace/Difficulty.yaml

@@ -4,4 +4,6 @@ values:
  - Easy
  - Medium
  - Hard
- - Expert
+ - Expert
+ - Impossible
+ 

dev/import-tool/docs/huly/example-workspace/DocumentCard.yaml renamed to dev/import-tool/docs/huly/example-workspace/DocumentCard.md

@@ -1,5 +1,5 @@
 ---
-class: card:class:DocumentCard
+class: card:types:Document
 title: Document Example
 ---
 CONTENT

dev/import-tool/docs/huly/example-workspace/FileCard.md

@@ -2,9 +2,9 @@
 class: card:types:File
 title: File Example
 blobs:
- - ./files/cake.png
+ - ./Recipes/files/cake.png
 attachments:
- - ./files/cake.png
+ - ./Recipes/files/cake.png
 ---
 
 *DESCRiption*

dev/import-tool/docs/huly/example-workspace/SlaveCard/Frodo.md

@@ -12,7 +12,7 @@ multy-enum: [Beta]
 attachments: 
  - ../../CARDS_INSTRUCTIONS.md
 blobs:
- - ../files/screenshot.png
+ - ../Recipes/files/cake.png
  - ../../CARDS_INSTRUCTIONS.md
 ---