Revert "docs: update readme for release sync"

This reverts commit f854ff9.

Author: NitayRabi

README.md

@@ -1,3 +1,47 @@
-# LittleSis MCP
+# LittleSis MCP Server
 
-Updated for release sync
+An MCP (Model Context Protocol) server that provides access to the [LittleSis API](https://littlesis.org/api) for tracking corporate power and accountability relationships.
+
+## API Coverage
+
+This MCP server implements all major LittleSis API endpoints:
+
+### Entity Tools
+- `get_entity` - Get detailed information about a specific entity
+- `get_entities` - Get multiple entities at once (up to 300)
+- `search_entities` - Search for entities by name with filtering
+- `get_entity_extensions` - Get entity types/classifications
+- `get_entity_relationships` - Get all relationships for an entity
+- `get_entity_connections` - Get connected entities
+- `get_entity_lists` - Get lists an entity appears on
+
+### Relationship Tools
+- `get_relationship` - Get detailed relationship information
+
+
+
+## Usage Examples
+
+```json
+{
+    "mcpServers": {
+        "littlesis": {
+            "command": "node",
+            "args": ["dist/index.js"],
+            "cwd": "/path/to/littlesis-mcp"
+        }
+    }
+}
+```
+
+## Data License
+
+All data accessed through this MCP server is from LittleSis and is licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/).
+
+## About LittleSis
+
+[LittleSis](https://littlesis.org) is a free database of who-knows-who at the heights of business and government. It tracks the revolving door between business and government, political donations, and more.
+
+## License
+
+MIT License - see LICENSE file for details.