clean docs

CONTRIBUTING.md

@@ -26,6 +26,11 @@ Hi! We, the maintainers, are really excited that you are interested in contribut
 
 ### Quick start
 
+#### Install CMake and Ninja-Build
+
+> CEF release is distributed with the prebuilt dynamic binaries(libcef) and cef_dll_wrapper source code, We must compile
+> cef_dll_wrapper into static library then link with it(See[Build Steps](https://bitbucket.org/chromiumembedded/cef/wiki/Tutorial.md))
+
 #### Download CEF from [cef-builds](https://cef-builds.spotifycdn.com/index.html)
 
 ```sh

README.md

@@ -14,50 +14,6 @@
 | x86_64 | ✅    | ✅   | ✅      |
 | ARM64  | ✅    | ✅   | ✅      |
 
-## Usage
-
-### Linux
-
-#### Manual Install
-
-- Download Linux-64bit prebuilt with `sys/upgrade.rs`:
-
-```sh
-cd sys
-
-# make sure you have `cmake` and 'ninja-build' installed
-./upgrade.rs x86_64-unknown-linux-gnu --download
-```
-
-- Build and run the application with `LD_LIBRARY_PATH` (or you can also add rpath to your cargo config or build script):
-
-```sh
-LD_LIBRARY_PATH=sys/cef/archive_linux_x86_64 cargo r --example demo
-```
-
-#### Flatpak
-
-- Install flatpak runtime & sdk:
-
-```
-flatpak install flathub dev.crabnebula.Platform
-flatpak install flathub dev.crabnebula.Sdk
-```
-
-- Setup cargo project for flatpak. See [flatpak-builder-tools](https://github.com/flatpak/flatpak-builder-tools/blob/master/cargo/README.md) for more details. Here are files you will need to have at leaset:
-  - flatpak-cargo-generator.py
-  - flatpak manifest file (ie. app.example.demo.yml)
-
-- Build the flatpak application and run:
-
-```
-cargo b --example demo
-python3 ./flatpak-cargo-generator.py ./Cargo.lock -o cargo-sources.json
-touch run.sh
-flatpak-builder --user --install --force-clean target app.example.demo.yml
-flatpak run app.example.demo
-```
-
 ## Contributing
 
 Please see [CONTRIBUTING.md](CONTRIBUTING.md) for details.