fix: correct link

Author: sswietoniowski

hyperskill/README.md

@@ -7,7 +7,7 @@
 | [Case Converter](./01_case_converter)        | Easy        | Completed      |
 | [Flashcards (Frontend)](./02_flashcards)     | Hard        | Completed      |
 | [To-Do List (JavaScript)](./03_todo_list)    | Challenging | Completed      |
-| [Hypergram](./04_hypergram)                  | Medium      | [Completed][1] |
+| [Hypergram](./04_hypergram)                  | Medium      | [Completed](1) |
 | [Minesweeper (JavaScript)](./05_minesweeper) | Challenging | In Progress    |
 
 [1]: The project is completed (as per the requirements) but there is no way to pass the tests on the Hyperskill platform due to the error in the tests themselves, at the same time you can run the project locally and see that it works as expected.