Merge pull request #16 from willowisp01/update-readme

Update README

README.md

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 ![Ui](docs/images/Ui.png)
 
-* This is **a sample project for Software Engineering (SE) students**.<br>
-  Example usages:
-  * as a starting point of a course project (as opposed to writing everything from scratch)
-  * as a case study
-* The project simulates an ongoing software project for a desktop application (called _AddressBook_) used for managing contact details.
-  * It is **written in OOP fashion**. It provides a **reasonably well-written** code base **bigger** (around 6 KLoC) than what students usually write in beginner-level SE modules, without being overwhelmingly big.
-  * It comes with a **reasonable level of user and developer documentation**.
-* It is named `AddressBook Level 3` (`AB3` for short) because it was initially created as a part of a series of `AddressBook` projects (`Level 1`, `Level 2`, `Level 3` ...).
+* This is **an app for CS instructors that helps manage weaker students**.<br>
+* The project is based on an ongoing software project for a desktop application (called _AddressBook_) used for managing contact details. We have made several enhancements to it (see example usages).
+
+* Example usages:
+  * forming focus groups of weaker students
+  * visualising the performance of weaker students over time
+  * dedicating tutors and other resources to helping weaker students
+
+* It is **written in OOP fashion**. It provides a **well-written** code base of around 10k LOC.
+* It comes with a **reasonable level of user and developer documentation**.
+* It is named **“TeachStack”** as a pun on heap and stack.
+
 * For the detailed documentation of this project, see the **[TeachStack Product Website](https://ay2324s2-cs2103t-t09-1.github.io/tp/)**.
 * This project is based on the AddressBook-Level3 project created by the [SE-EDU initiative](https://se-education.org).