diff --git a/.github/workflows/docs-autoupdate.yml b/.github/workflows/docs-autoupdate.yml
new file mode 100644
index 0000000..6485968
--- /dev/null
+++ b/.github/workflows/docs-autoupdate.yml
@@ -0,0 +1,41 @@
+name: docs-autoupdate
+
+on:
+  push:
+    branches:
+      - '*'
+      
+jobs:
+  update-docs:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Update docs
+      run: |
+        if ! [[ -e USAGE.md ]]; then touch USAGE.md; fi
+        mv USAGE.md USAGE.md.old
+        mkdir tools
+        cp ./builder ./tools/
+        chmod +x ./tools/builder
+        echo '# KF2-BuildTools'                                                                                                                                                                                 >> USAGE.md
+        echo '[![title](https://img.shields.io/badge/Help-Page-w)](https://github.com/GenZmeY/KF2-BuildTools)'                                                                                                  >> USAGE.md
+        echo '[![version](https://img.shields.io/github/v/tag/genzmey/KF2-BuildTools)](https://github.com/GenZmeY/KF2-BuildTools/tags)'                                                                              >> USAGE.md
+        echo '[![docs-autoupdate](https://github.com/GenZmeY/KF2-BuildTools/actions/workflows/docs-autoupdate.yml/badge.svg)](https://github.com/GenZmeY/KF2-BuildTools/actions/workflows/docs-autoupdate.yml)' >> USAGE.md
+        echo '```'                                                                                                                                                                                              >> USAGE.md
+        ./tools/builder -nch                                                                                                                                                                                    >> USAGE.md
+        echo '```'                                                                                                                                                                                              >> USAGE.md
+        if ! cmp -s USAGE.md USAGE.md.old; then
+            git config --local user.email "github-actions[bot]@users.noreply.github.com"
+            git config --local user.name "github-actions"
+            git add USAGE.md
+            git commit -m "Update USAGE.md to version $(git describe 2> /dev/null)"
+        else
+            echo "No change, skip updating USAGE.md"
+        fi
+    - name: Push changes
+      uses: ad-m/github-push-action@master
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        branch: ${{ github.ref }}
\ No newline at end of file
diff --git a/README.md b/README.md
index 5a5eaba..a582558 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,84 @@
-# KF2-BuildTools
-
-git submodule add https://github.com/GenZmeY/KF2-BuildTools tools
-./tools/builder -i
\ No newline at end of file
+# KF2-BuildTools
+[![version](https://img.shields.io/github/v/tag/genzmey/KF2-BuildTools)](https://github.com/GenZmeY/KF2-BuildTools/tags)
+[![shellcheck](https://github.com/GenZmeY/KF2-BuildTools/actions/workflows/shellcheck-master.yml/badge.svg)](https://github.com/GenZmeY/KF2-BuildTools/actions/workflows/shellcheck-master.yml)
+[![docs-autoupdate](https://github.com/GenZmeY/KF2-BuildTools/actions/workflows/docs-autoupdate.yml/badge.svg)](https://github.com/GenZmeY/KF2-BuildTools/actions/workflows/docs-autoupdate.yml)
+[![license](https://img.shields.io/github/license/GenZmeY/KF2-Server-Extension)](LICENSE)
+
+## Features:
+- Build, brew, test and upload to Steam Workshop;
+- No need to edit KFEditor.ini at all;
+- Sources can be stored in any path;
+- Easily switch between different projects.
+
+## Add to your project
+[git-bash](https://git-scm.com/) is the only thing you need. If you're already using git, you probably already have it. If not, [install it](https://git-scm.com/download/win).
+
+**There are two options to add KF2-BuildTools to your project:**
+
+### As git submodule
+Make sure that the location of folders and files in your project is as follows (Correct it if it's not):  
+`/<PackageName>/Classes/*uc`
+
+Open git-bash and go to your project: `cd <your_project_path>`  
+Then run the command:  
+`git submodule add https://github.com/GenZmeY/KF2-BuildTools tools`  
+
+**updating build tools:**  
+Open git-bash and go to your project: `cd <your_project_path>`  
+Get updates with the following command: `pushd tools && git pull && popd`  
+Now if you run `git status` you can see that `tools` has changed: 
+```
+$ git status
+On branch master
+Your branch is up to date with 'origin/master'.
+
+Changes not staged for commit:
+  (use "git add <file>..." to update what will be committed)
+  (use "git restore <file>..." to discard changes in working directory)
+        modified:   tools (new commits)
+
+no changes added to commit (use "git add" and/or "git commit -a")
+```
+Commit the changes: `git add tools && git commit -m 'update tools'`
+
+### As standalone script
+Just create a `tools` folder and put [builder](builder) there.  
+Now you can use the script in the same way as in the first case, but you will have to update it yourself.  
+
+## If you are using someone else's project that has BuildTools...
+If you haven't downloaded the project yet, just add `--recurse-submodules` when cloning it:  
+`git clone --recurse-submodules <someone_else's_project>`  
+If you have already downloaded the project, just run the command in the project folder:  
+`git submodule update --init --recursive`  
+
+## Usage (Basic)
+If you have a simple mutator or game mode, then the usage is also simple:  
+`./tools/builder --compile` build project  
+`./tools/builder --test` start project test  
+`./tools/builder --upload` upload/update your project to/in the steam workshop  
+
+If you need help with commands, run: `./tools/builder --help`, or visit [this page](USAGE.md).
+
+## Usage (Advanced)
+If your project contains several mutators, *.upk files, external dependencies, or you want to customize the whole process in more detail, then this section is for you. 
+
+### Prepare
+**UNDER CONSTRUCTION**  
+
+### Compilation
+**UNDER CONSTRUCTION**  
+
+### Brewing
+**UNDER CONSTRUCTION**  
+
+### Testing
+**UNDER CONSTRUCTION**  
+
+### Uploading to steam workshop
+**UNDER CONSTRUCTION**  
+
+## Other
+[TODO List](TODO.md)
+
+## License
+[GNU GPLv3](LICENSE)
diff --git a/TODO.md b/TODO.md
index 787d2d2..ca9aa5c 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,5 +1,6 @@
-# TODO:
-- write helpfull README.md
-- add map upload support
-- *.upk with it's own filesystem (like in weapon packs)
-- add kf2 support in another steam library (`Steam\steamapps\libraryfolders.vdf` may help)
+# TODO:
+- write useful README.md
+- add map upload support
+- *.upk with it's own filesystem (like in weapon packs)
+- add kf2 support in another steam library (`Steam\steamapps\libraryfolders.vdf` may help)
+- add --init-publication-content parameter
diff --git a/builder b/builder
index 5fc9887..307ae54 100644
--- a/builder
+++ b/builder
@@ -25,11 +25,13 @@ trap cleanup SIGINT SIGTERM ERR EXIT
 
 function reg_readkey () # $1: path, $2: key
 {
-	cygpath -u "$(
-	reg query "$1" //v "$2"      | \
-	grep -F "$2"                 | \
-	awk '{ $1=$2=""; print $0 }' | \
-	sed -r 's|^\s*(.+)\s*|\1|g')"
+	if [[ "$OSTYPE" == "msys" || "$OSTYPE" == "cygwin" ]]; then
+		cygpath -u "$(
+		reg query "$1" //v "$2"      | \
+		grep -F "$2"                 | \
+		awk '{ $1=$2=""; print $0 }' | \
+		sed -r 's|^\s*(.+)\s*|\1|g')"
+	fi
 }
 
 # Whoami