update README.md

@@ -10,9 +10,41 @@ sub-subject : making chat site using JS
 # Schedule
 
 - 4/6 ~ 4/12
-- [ ] setting development environment
-  
+- [X] Set development environment
 
 - 4/13 ~ 4/19
 - [ ] login, sign up
+  
+  (using JWT, sendGrid)
+
+- 4/20 ~ 4/26
+- [ ] Find ID, PW
+  
+- 4/27 ~ 5/3
+- [ ] Make chat room
+  
+  (using subscription)
+  
+- 5/4 ~ 5/10
+- [ ] Mid-term exam, Debugging
+   
+- 5/11 ~ 5/17
+- [ ] Plan chat category and make code
+
+- 5/18 ~ 5/24
+- [ ] Debugging for code created in 6th week
+
+- 5/25 ~ 5/31
+- [ ] Plan a matching strategy for random chat
+
+- 6/1 ~ 6/7
+- [ ] Make a code based on the matching plan created in 8th week  
+
+- 6/8 ~ 6/14
+- [ ] Debugging for whole codes in our project
+
+- 6/15 ~ 6/21
+- [ ] Deploy project in AWS amplify
 
+- 6/22 ~ 6/26
+- [ ] Final exam, review project