Added gql_client under rust/client directory

Author: arthurkhlghatyan

src/content/code/language-support/rust/client/gql_client.md

@@ -0,0 +1,32 @@
+---
+name: gql_client
+description: Minimal GraphQL client for Rust
+url: https://github.com/arthurkhlghatyan/gql-client-rs
+github: arthurkhlghatyan/gql-client-rs
+---
+
+Usage example
+```rust
+use gql_client::Client;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+  let endpoint = "https://graphqlzero.almansi.me/api";
+  let query = r#"
+    query AllPostsQuery {
+      posts {
+        data {
+          id
+        }
+      }
+    }
+  "#;
+
+  let client = Client::new(endpoint);
+  let data: AllPosts = client.query::<AllPosts>(query).await.unwrap();
+
+  println!("{:?}" data);
+
+  Ok(())
+}
+```