added graphql schema doc
//
//! Service for monitoring KubOS Linux processes, memory, and CPU usage
+//!
+//! # GraphQL Schema
+//!
+//! ```graphql
+//! schema {
+//! query: Query
+//! }
+//!
+//! type Query {
+//! ping: String!
+//! memInfo: MemInfo!
+//! ps(pids: [Int!] = null): [ProcInfo!]!
+//! }
+//!
+//! type MemInfo {
+//! total: Int
+//! free: Int
+//! available: Int
+//! lowFree: Int
+//! }
+//!
+//! type ProcInfo {
+//! pid: Int!
+//! uid: Int
+//! gid: Int
+//! usr: String
+//! grp: String
+//! state: String
+//! ppid: Int
+//! mem: Int
+//! rss: Int
+//! threads: Int
+//! cmd: String
+//! }
+//! ```
+
#[macro_use]
extern crate failure;
#[macro_use]
