Update how-to-deploy-on-AWS.md (#2722)

suggestions and fixes to the instructions, as I followed along making a new aws instance

website/docs/how-to-deploy-on-AWS.md

@@ -9,18 +9,21 @@ This document describes simple steps to setup Verdaccio private registry on Amaz
 
 **Step 1:** Open SSH & Login in using your EC2 key.
 
-**Step 2:** Install Node Version Manager (nvm) first
+**Step 2:** Install Node Version Manager (nvm) first, close and re-open the SSH using your EC2 key.
 
- ```
-wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
-   ```
+ ``` sudo apt update ```
+ 
+ ``` wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash ``` 
+ 
+ ``` exit ```
+ 
 **Step 3:** Install Node using Node Version Manager (nvm)
 
  ``` nvm install node ```
 
 **Step 4:** Install Verdaccio & pm2, will require to run Verdaccio service in background
 
- ```yaml npm i -g verdaccio pm2 ```
+ ``` npm i -g verdaccio pm2 ```
 
 **Step 5:** Set the verdaccio registry as a source. By default original NPM registry set.
  
@@ -28,7 +31,7 @@ wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh |
  
  ``` npm set ca null ```
 
-**Step 6:** Run Verdaccio and stop it. It will create a config file we will use.
+**Step 6:** Run Verdaccio and stop it (ctrl+c). It will create a config file we will use.
 
  ``` verdaccio ```
  
@@ -36,17 +39,22 @@ wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh |
 
 Open and edit `config.yaml` file:
 
- ```  nano .config/verdaccio/config.yaml ```
+ ```  nano .config/verdaccio/config.yaml ``` or ```  nano ~/verdaccio/config.yaml ```
 
 Add below lines at the end. [(read more)](https://github.com/verdaccio/verdaccio/blob/ff409ab7c05542a152100e3bc39cfadb36a8a080/conf/full.yaml#L113)
 
- ```yaml listen:
+ ```
+ listen:
   - 0.0.0.0:4873
 ```
 
 Change below line so that only authenticated person can access our registry
 
  ``` Replace "access: $all" with "access: $authenticated" ```
+ 
+ (Optional) Change below line according to how many users you wish to grant access to the scoped registry
+ 
+ ``` Replace "#max_users: 1000" with "max_users: 1" ```
 
 There are some more parameters available to configure it. Like storage, proxy, default port change. [(read more)](https://github.com/verdaccio/verdaccio/blob/ff409ab7c05542a152100e3bc39cfadb36a8a080/conf/full.yaml#L113)
 
@@ -67,6 +75,22 @@ The URL will look like something:
 To confirm Verdaccio's running status, run the command below:
 
  ```  pm2 list ```
+ 
+ To make Verdaccio launch on startup, run the commands below:
+ 
+ ``` pm2 stop verdaccio ```
+ 
+ ``` pm2 delete verdaccio ```
+ 
+ ``` pm2 startup ``` This will show a command in your terminal. Copy / paste it and execute it to have pm2 make a startup service for you.
+ 
+ ``` which verdaccio ``` Copy the path shown by this command.
+ 
+ ``` pm2 start /home/ubuntu/.nvm/versions/node/v17.1.0/bin/verdaccio ``` (put the path you copied from command above).
+ 
+ ``` pm2 status ```  This should show "online" on the status of verdaccio service.
+ 
+ ``` pm2 save ``` Now when you reboot the EC2 instance, it should launch verdaccio.
 
 **Step 10:** Registering a user in verdaccio registry