docs: improve README use cases and CLI examples

- Replace use cases table with simple icon list
- Add real-world CLI examples with actual output
- Show webpage scraping pipeline (curl | grep | socials)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: lorey

README.md

@@ -12,13 +12,11 @@ You have a list of URLs from a scrape, a CSV export, or email signatures.
 Some of them are social media profiles.
 Socials finds them and gives you structured data to work with.
 
-| | |
-|---|---|
-| :mag: **Extract** | Pull social profiles from scraped pages or contact lists |
-| :white_check_mark: **Validate** | Check if URLs are recognized social profiles |
-| :arrows_counterclockwise: **Normalize** | Get consistent usernames from messy URL variations |
-| :card_file_box: **Categorize** | Group URLs by platform or entity type |
-| :robot: **Automate** | Batch process URL files via CLI |
+:mag: **Extract** social profiles from scraped pages or contact lists
+:white_check_mark: **Validate** URLs as recognized social profiles
+:arrows_counterclockwise: **Normalize** messy URL variations to consistent usernames
+:card_file_box: **Categorize** URLs by platform or entity type
+:robot: **Automate** batch processing via CLI
 
 ## Installation
 
@@ -161,14 +159,15 @@ Usage: socials [OPTIONS] COMMAND [ARGS]...
 Examples:
 
 ```bash
-# Check a single URL
-socials check https://github.com/lorey
-
-# Extract from a file
-socials extract urls.txt
-
-# Pipe from another command
-cat links.txt | socials extract
+# Find all social links on a webpage
+$ curl -s https://karllorey.com | grep -oE 'https?://[^"]+' | socials extract
+linkedin	https://www.linkedin.com/in/karllorey
+github	https://github.com/lorey
+instagram	https://www.instagram.com/karllorey
+
+# Check what platform a URL belongs to
+$ socials check https://github.com/lorey
+github
 ```
 
 ## Documentation