Tags in Readme and license in files

README.md

@@ -4,6 +4,9 @@
     <img alt="actix-web-grants" src="./assets/icon_with_text.svg" width="170">
 </p>
 
+![Crates.io](https://img.shields.io/crates/v/post_maker?color=%23069060&style=for-the-badge)
+![Crates.io](https://img.shields.io/crates/l/post_maker?style=for-the-badge)
+
 > Post Maker helps you to make post for instagram and other social media apps easily and in massive amount. 
 
 ## Installing

src/dialog.rs

@@ -1,3 +1,17 @@
+/*
+    This file is part of Post Maker.
+    Post Maker is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    Post Maker is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+    You should have received a copy of the GNU General Public License
+    along with Post Maker.  If not, see <https://www.gnu.org/licenses/>
+*/
+
 pub(crate) use fltk::dialog::{color_chooser_with_default, ColorMode};
 use fltk::{app::get_mouse, dialog};
 

src/macros.rs

@@ -1,3 +1,17 @@
+/*
+    This file is part of Post Maker.
+    Post Maker is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    Post Maker is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+    You should have received a copy of the GNU General Public License
+    along with Post Maker.  If not, see <https://www.gnu.org/licenses/>
+*/
+
 #[macro_export]
 macro_rules! rw_read {
     ($var:expr) => {

src/result_ext.rs

@@ -1,6 +1,19 @@
-use std::{fmt::Debug, panic::Location};
+/*
+    This file is part of Post Maker.
+    Post Maker is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    Post Maker is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+    You should have received a copy of the GNU General Public License
+    along with Post Maker.  If not, see <https://www.gnu.org/licenses/>
+*/
 
 use crate::utils;
+use std::{fmt::Debug, panic::Location};
 
 pub trait ResultExt<T, E> {
     fn expect_log(self, msg: &str) -> T;