first draft of readme, contains project domain, function description,…

… APIs, and concerns. More on API choices and concerns need to be added.

README.md

@@ -1,2 +1,19 @@
 # SkillSquad
 CSC207 Project
+**Problem domain:**
+We want to develop a public human resource system for job-seekers and recruiters to find their match. 
+
+**How the system works**
+- Job-seekers can upload their resumes through the interface. The application will process the resume to store key 
+information such as name, age, education, ect.
+- Recruiters have a separate interface, where they can set key information about desired candidates (e.g. education and
+experience) and the application will prompt them with potential candidates, based on their uploaded resumes.
+
+**Potential APIs to use**
+- https://docs.servicenow.com/en-US/bundle/vancouver-api-reference/page/integrate/inbound-rest/concept/hr-core-api.html
+
+**Potential technical problems blocking progress**
+- Format of user-uploaded resume. Because resume formats are diverse, it's possible that our application cannot properly
+handle all types, thereby causing some troubles in processing data for storing. We are thinking to put restrictions on
+the format of resumes that the users are allowed to upload, or even further, provide them with a web form to fill in
+their information, rather than uploading.