Update block docs for: email_block.md

docs/content/platform/blocks/update/email_block.md

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+## Send Email Block
+
+### What it is
+A specialized block designed to send emails using SMTP (email server) credentials, making it easy to send emails directly from your workflow.
+
+### What it does
+This block allows you to send emails to specified recipients with customized subjects and message content using your email server credentials.
+
+### How it works
+1. Takes your email server credentials and message details as input
+2. Connects securely to the specified email server
+3. Authenticates using the provided username and password
+4. Sends the email to the specified recipient
+5. Returns the status of the sending operation
+
+### Inputs
+- To Email: The recipient's email address where the message will be sent
+- Subject: The title or subject line of the email
+- Body: The main content or message of the email
+- Credentials:
+  - SMTP Server: The email server address (default: smtp.gmail.com)
+  - SMTP Port: The server port number (default: 25)
+  - SMTP Username: Your email address or username for authentication
+  - SMTP Password: Your email account password or application-specific password
+
+### Outputs
+- Status: A message indicating whether the email was sent successfully
+- Error: A description of what went wrong if the email sending failed
+
+### Possible use case
+An automated notification system that sends email alerts when specific events occur. For example:
+- Sending confirmation emails to users after they complete a registration
+- Notifying team members when a task is completed
+- Sending automated reports to stakeholders at scheduled intervals
+- Alerting system administrators about critical system events
+
+The block can be integrated into larger workflows where email communication is required as part of an automated process.
+