README update: general update

README.md

@@ -6,16 +6,80 @@
 [Development Live stream](https://www.twitch.tv/essial/)\
 [Support us on Patreon](https://www.patreon.com/bePatron?u=37261055)
 
-HellSpawner is the toolset used for developing games on the [OpenDiablo2](https://github.com/OpenDiablo2/OpenDiablo2) engine. 
+## About this project
 
-It is currently early in development and not ready for active use. 
+HellSpawner is the toolset used for developing games on the [OpenDiablo2](https://github.com/OpenDiablo2/OpenDiablo2) engine. 
 
 ## Getting the source
 
-After pulling the source, you need to grab the submodules in order to run the project.
-You can do so by running the following command in the root of the project:
+To download code use a following command:
+
+`git clone --recurse-submodules https://github.com/OpenDiablo2/hellspawner`
+
+or after pulling the source, download submodules:
 
 `git submodule update --init --recursive`
 
+Thenn, you need to download go's dependencies:
+
+In root of your project run `go get -d`
+
+Run project by `go run .`
+
+If you're using Unix-based OS, you can build project with included building script: run `./build.sh`
+
+## Contributing
+
+If you find something you'd like to fix that's obviously broken, create a branch, commit your code, and submit a pull request. If it's a new or missing feature you'd like to see, add an issue, and be descriptive!
+
+If you'd like to help out and are not quite sure how, you can look through any open issues and tasks, or ask
+for tasks on our discord server.
+
+
+### Lint Errors
+We use `golangci-lint` to catch lint errors, and we require all contributors to install and use
+ it. Installation instructions can be found [here](https://golangci-lint.run/usage/install/).
+
+
+## VS Code Extensions
+
+The following extensions are recommended for working with this project:
+
+-   ms-vscode.go
+-   defaltd.go-coverage-viewer
+
+When you open the workspace for the first time, Visual Studio Code will automatically suggest these extensions for installation.
+
+Alternatively you can get to it by going to settings <kbd>Ctrl+,</kbd>, expanding `Extensions` and selecting `Go configuration`,
+then clicking on `Edit in settings.json`. Just paste that section where appropriate.
+
+## Status
+
+For now (january 2021) we can use HellSpawner to:
+
+* create projects
+
+* browse MPQ archives
+
+* view following file formats:
+
+  - COF, DC6 and DCC animations
+
+  - DS1 and DT1 map's tiles
+
+  - WAV sound files
+
+  - TXT - data tables
+
+  - TBL - font tables
+
+  - TBL - string tables
+
+  - PL2 - palettes
+
+Much work has been made in the background, but a lot of work still has to be done for the project to be complete.
+
+Feel free to contribute!
+
 ## Screenshots
-![Screenshot](screenshot1.png)
+![Screenshot](docs/overview.png)