First commit: main.rs and dependency

Signed-off-by: jinhai <haijin.chn@gmail.com>

.gitignore

@@ -12,3 +12,5 @@ Cargo.lock
 
 # MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
+
+.idea/

Cargo.toml

+[package]
+name = "doc_gpt"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+actix = "0.13.1"
+postgres = "0.19.7"
\ No newline at end of file

src/main.rs

+fn main() {
+    println!("Hello, world!");
+}