Merge pull request #84 from hangpark/iss/81

[#81] Update README

README.md

@@ -6,7 +6,23 @@ Repository for PintOS implementation project of CS330 in KAIST.
 
 To contribute, read [CONTRIBUTING.md](CONTRIBUTING.md).
 
-## Contributors
+## Requirements
 
-- Hang Park <[email protected]>
-- Lament <[email protected]>
+This OS is run in the specific environment below:
+
+- Ubuntu 8.04 (Hardy Heron)
+- GCC 3.4
+- Bochs 2.2.6
+- QEMU 0.15.0
+
+You can use Bochs or QEMU for emulate PintOS.
+
+## Build
+
+Docker image for an environment satisfies above requirements is provided at [hangpark/pintos-dev-env-kaist](https://hub.docker.com/r/hangpark/pintos-dev-env-kaist/). Use below commands to build (or check, grade) the PintOS.
+```bash
+$ git clone https://github.com/hangpark/pintos.git
+$ sudo docker pull hangpark/pintos-dev-env-kaist
+$ sudo docker run -t -d --name pintos -v pintos:/pintos hangpark/pintos-dev-env-kaist
+$ sudo docker exec -i -t pintos bash -c "cd src/<dir> && make [check|grade]"
+```