docs: firebase deploy

wiki/02_WEB_HOSTING.md

@@ -0,0 +1,29 @@
+## web으로 빌드해서 파이어베이스에 deploy
+
+### Build flutter project
+
+1. package 설치
+```bash
+fvm flutter pub get
+```
+
+2. web으로 빌드
+```bash
+fvm flutter build web
+```
+
+### deploy to firebase
+1. firebase 설치
+```bash
+npm install -g firebase-tools
+```
+
+2.firebase login
+```bash
+firebase login
+```
+
+3. firebase에 deploy
+```bash
+firebase deploy
+```