Improve the Rustdoc comment and comments

git/src/internal/object/tag.rs

@@ -23,8 +23,8 @@
 //! and then move the tag to a different commit, the tag will still point to the original commit.
 //!
 //! The lightweight just a text file with the commit hash in it, and the file name is the tag name.
-//! If one of -a, -s, or -u <key-id> is passed, the command creates a tag object, and requires a tag
-//! message. Unless -m <msg> or -F <file> is given, an editor is started for the user to type in the
+//! If one of -a, -s, or -u \<key-id\> is passed, the command creates a tag object, and requires a tag
+//! message. Unless -m \<msg\> or -F \<file\> is given, an editor is started for the user to type in the
 //! tag message.
 //!
 //! ```bash

git/src/internal/object/tree.rs

@@ -180,12 +180,7 @@ impl TreeItem {
     /// ```bash
     /// <mode> <name>\0<binary object ID>
     /// ```
-    ///
-    /// # Example
-    /// ```rust
-    //  let bytes = Vec::<u8>::new().to_bytes();
-    //  let tree_item = TreeItem::new_from_bytes(bytes.as_slice()).unwrap();
-    /// ```
+    /// 
     #[allow(unused)]
     pub fn new_from_bytes(bytes: &[u8]) -> Result<Self, GitError> {
         let mut parts = bytes.splitn(2, |b| *b == b' ');

src/main.rs

@@ -1,4 +1,5 @@
-//!
+//! Mega is an engine for managing a monorepo. It functions similarly to Google's Piper and helps to streamline Git 
+//! and trunk-based development for large-scale projects.
 //!
 //!
 //!
@@ -13,6 +14,7 @@ fn main() {
     env::set_var("RUST_LOG", "debug");
     tracing_subscriber::fmt::init();
     dotenvy::dotenv().ok();
+
     // Parse the command line arguments
     let result = cli::parse();