adding config

config.toml

@@ -0,0 +1,5 @@
+default_questions = "questions.txt"
+
+[server_config]
+ip = "127.0.0.1"
+port = 8000

src/config.rs

@@ -0,0 +1,20 @@
+use serde::Deserialize;
+
+pub fn parse_config(config_str: &str) -> Result<Config, toml::de::Error> {
+    toml::from_str(config_str)
+}
+
+#[derive(Deserialize)]
+pub struct Config {
+    pub default_questions: String,
+    pub server_config: ServerConfig
+}
+
+#[derive(Deserialize)]
+pub struct ServerConfig {
+    pub ip: String,
+    pub port: Option<u16>,
+    pub workers: Option<u32>
+}
+
+