1) Grammatical improvement in wdmatch

2) added extra example to match the improve test in go-tests repo

subjects/wdmatch/README.md

@@ -2,7 +2,7 @@
 
 ### Instructions
 
-Write a program that takes two `string` and checks whether it is possible to write the first `string` with characters from the second `string`, while respecting the order in which these characters appear in the second `string`.
+Write a program that takes two `string` and checks whether it is possible to write the first `string` with characters from the second `string`. This rewrite must respectSS the order in which these characters appear in the second `string`.
 
 If it is possible, the program displays the `string` followed by a newline (`'\n'`), otherwise it simply displays nothing.
 
@@ -11,6 +11,8 @@ If the number of arguments is different from 2, the program displays nothing.
 ### Usage
 
 ```console
+$ go run . 123 123
+123
 $ go run . faya fgvvfdxcacpolhyghbreda
 faya
 $ go run . faya fgvvfdxcacpolhyghbred