Merge branch 'readme_revision' into '1DEVT'

readme_revision

See merge request !8

-# ChatGPT Server
-
-## Installation
-
-npm install on the root directory.
-
-## Create ENV Variables
-
-Create an .env file in the root directory of your application.
-Duplicate the env-template and rename to .env
-In the .env file, define the environment variables you want to use in your application. ex.
-
-API_KEY="sk-xxxxxxxx"
-API_ORG="org-xxxxxxx"
-SERVER_URL="http://localhost:3080/"
-
-## Run server
-
-Run server on the root directory
-
-`node index.js`
+# ChatGPT AI-Pro Installation
+
+## Setting up local development
+
+### Set up ENV Variables
+1. Set up environment variable `.env` file in root and inside */client* folder. In root, duplicate the `env-template` file and rename it to `.env`. Inside the */client* folder, create `.env` file
+2. In the root `.env` file, define the needed OpenAI environment variables in your application.
+
+* Sign up here [https://beta.openai.com/signup](https://beta.openai.com/signup). You can use your Google or Microsoft account to sign up if you don't want to create using an email/password combination. You may need a valid mobile number to verify your account. 
+* Now, visit your OpenAI key page [https://beta.openai.com/account/api-keys](https://beta.openai.com/account/api-keys)
+* Create a new key by clicking the "Create new secret key" button.
+	
+3. You can Values should be a string, enclosed with ``""``  Example : 
+ 
+     ```
+     OPENAI_API_KEY=“sk-xxxxxxx”
+     OPENAI_API_ORG=“org-xxxxxxxx”
+     ```
+
+4. In the `.env` file of the client, define the SERVER_URL environment variable in your application. 
+5. Name the variable starting with **REACT_APP_** and Value must **not** enclosed with commas `""` Example :
+
+     ```
+     REACT_APP_SERVER_URL=http://localhost:3080/
+    ```
+
+### NPM Install and Run Application
+**Note:** Prepare 2 Terminals.
+1. On the first terminal, run `npm install` on **root**.  After that run `node index.js` 
+2. On the second terminal, run `npm install` inside the **/client**. Then run `npm run start`
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