feat: Add Slither to README.md and include contract file to test

README.md

@@ -5,3 +5,18 @@ TODO: add banner
 Tycho Execution makes it easy to trade on different DEXs by handling the complex encoding for you. Instead of creating
 custom code for each DEX, you get a simple, ready-to-use tool that generates the necessary data to execute trades. It’s
 designed to be safe, straightforward, and quick to set up, so anyone can start trading without extra effort.
+
+# Contract Analysis
+
+We use [Slither](https://github.com/crytic/slither) to detect any potential vulnerabilities in our contracts.
+
+To run locally, simply install Slither in your conda env and run it inside the foundry directory.
+
+```
+conda create --name tycho-execution python=3.10
+conda activate tycho-execution
+
+python3 -m pip install slither-analyzer`
+cd foundry
+slither .
+```

foundry/src/TychoRouter.sol

@@ -0,0 +1,3 @@
+contract FrontendSwapRouter {
+    constructor() {}
+}