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docs(brackets_matching) correct grammar

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davhojt 2 years ago committed by Dav Hojt
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      subjects/brackets_matching/README.md

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subjects/brackets_matching/README.md

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### Instructions ### Instructions
Write a `program` that takes an undefined number of `string` in arguments. For each argument, if the expression is correctly bracketed, the program prints on the standard output `OK` followed by a newline (`'\n'`), otherwise it prints `Error` followed by a newline. Create a **program** that takes an undefined number of command-line arguments. For each argument, if the expression is correctly bracketed, the program prints `OK` to the standard output followed by a newline (`'\n'`), otherwise it prints `Error` followed by a newline.
Symbols considered as brackets are parentheses `(` and `)`, square brackets `[` and `]` and curly braces `{` and `}`. Every other symbols are simply ignored. All characters are ignored except for the following brackets:
- parentheses `(` and `)`.
- square brackets `[` and `]`.
- curly braces `{` and `}`.
An opening bracket must always be closed by the good closing bracket in the correct order. A `string` which does not contain any bracket is considered as a correctly bracketed. Opening brackets must only be closed by the corresponding closing bracket. For example, a curly brace cannot close a square bracket.
If there is no argument, the program must print nothing. A `String` which does not contain any brackets is considered to be correctly bracketed.
For receiving arguments from the command line you should use something like: If there are no arguments, the program must print nothing.
You'll need to get the command line arguments somehow, and this will get you started:
```rust ```rust
fn main() { fn main() {

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