corrections and translations

subjects/countdown.en.md

@@ -3,11 +3,9 @@
 ### Instructions
 
 Write a program that displays all digits in descending order, followed by a
-newline.
+newline(`'\n'`).
 
-### Expected main and function for the program
-
-### Expected output
+### Usage
 
 ```console
 student@ubuntu:~/piscine/test$ go build

subjects/displaya.en.md

@@ -2,14 +2,12 @@
 
 ### Instructions
 
-Write a program that takes a string, and displays the first 'a' character it
-encounters in it, followed by a newline. If there are no 'a' characters in the
-string, the program just writes a newline. If the number of parameters is not
-1, the program displays 'a' followed by a newline.
+Write a program that takes a `string`, and displays the first `a` character it
+encounters in it, followed by a newline(`'\n'`). If there are no `a` characters in the
+string, the program just writes `a` followed by a newline(`'\n'`). If the number of parameters is not
+1, the program displays an `a` followed by a newline(`'\n'`).
 
-### Expected main and function for the program
-
-### Expected output
+### Usage
 
 ```console
 student@ubuntu:~/piscine/test$ go build
@@ -18,5 +16,6 @@ a
 student@ubuntu:~/piscine/test$ ./test "bcvbvA"
 a
 student@ubuntu:~/piscine/test$ ./test "nbv"
+a
 student@ubuntu:~/piscine/test$
 ```

subjects/displayalpham.fr.md

@@ -0,0 +1,14 @@
+## displayalpham
+
+### Instructions
+
+Écrire un programme qui affiche l'alphabet, avec les lettres paires en majuscule, et les lettres impaires en minuscule, suivi d'un newline(`'\n'`).
+
+### Utilisation
+
+```console
+student@ubuntu:~/student/displayalpham$ go build
+student@ubuntu:~/student/displayalpham$ ./displayalpham | cat -e
+aBcDeFgHiJkLmNoPqRsTuVwXyZ$
+student@ubuntu:~/student/displayalpham$
+```

subjects/displayalrevm.en.md

@@ -3,15 +3,13 @@
 ### Instructions
 
 Write a program that displays the alphabet in reverse, with even letters in
-uppercase, and odd letters in lowercase, followed by a newline.
+uppercase, and odd letters in lowercase, followed by a newline(`'\n'`).
 
-The function must have the next signature.
-
-Example :
+### Usage
 
 ```console
 student@ubuntu:~/student/displayalrevm$ go build
 student@ubuntu:~/student/displayalrevm$ ./displayalrevm | cat -e
-aBcDeFgHiJkLmNoPqRsTuVwXyZ$
+zYxWvUtSrQpOnMlKjIhGfEdCbA$
 student@ubuntu:~/student/displayalrevm$
 ```

subjects/displayz.en.md

@@ -2,21 +2,20 @@
 
 ### Instructions
 
-Write a program that takes a string, and displays the first 'a' character it
-encounters in it, followed by a newline. If there are no 'a' characters in the
-string, the program just writes a newline. If the number of parameters is not
-1, the program displays 'a' followed by a newline.
+Write a program that takes a `string`, and displays the first `z` character it
+encounters in it, followed by a newline(`'\n'`). If there are no `z` characters in the
+string, the program just writes `z` followed by a newline(`'\n'`). If the number of parameters is not
+1, the program displays an `z` followed by a newline(`'\n'`).
 
-### Expected output
+### Usage
 
 ```console
 student@ubuntu:~/piscine/test$ go build
-student@ubuntu:~/piscine/test$ ./test "abc"
+student@ubuntu:~/piscine/test$ ./test "xyz"
 z
 student@ubuntu:~/piscine/test$ ./test "bcvbvZ"
 z
-student@ubuntu:~/piscine/test$ ./test "nbz"
+student@ubuntu:~/piscine/test$ ./test "nbv"
 z
 student@ubuntu:~/piscine/test$ ./test
-z
 ```

subjects/hello.en.md

@@ -2,11 +2,9 @@
 
 ### Instructions
 
-Write a program that displays "Hello World!".
+Write a program that displays "Hello World!" followed by a newline(`'\n'`).
 
-### Expected main and function for the program
-
-### Expected output
+### Usage
 
 ```console
 student@ubuntu:~/piscine/test$ go build

subjects/onlya.en.md

@@ -2,4 +2,4 @@
 
 ### Instructions
 
-Write a program that displays a 'a' character on the standard output.
+Write a program that displays a `a` character on the standard output. (and nothing else)

subjects/onlyz.en.md

@@ -1,5 +1,5 @@
-## displayalpham
+## onlyz
 
 ### Instructions
 
-Write a program that displays a 'z' character on the standard output.
+Write a program that displays a `z` character on the standard output. (and nothing else)