update readme.md

Author: rot0505

README.md

@@ -32,3 +32,32 @@ Your tasks are as follows with increasing levels of complexity
 2. FEATURE: Aggregate all opinion scale questions to get an overall happiness score and display this prominently (see designs).
 
 3. FEAUTRE: Show all free text responses in a table. These should be grouped by their questions with collapsable headers (see designs).
+
+
+# How to use
+
+>Please ensure that you run the `npm run prettier:check` and `npm run prettier` to write best code quality before push the code.
+
+### Set up the project
+
+`npm install`
+
+### Running the project
+
+`npm run start`
+
+### Testing the project
+
+`npm run test`
+
+### Running ESLint
+
+`npm run lint`
+
+### Running code format check
+
+`npm run prettier:check`
+
+### Formating your code
+
+`npm run prettier`