Repo refactor: rename "website" to "docs"

docs/API/shell.md

@@ -0,0 +1,27 @@
+#api/syscall
+
+The Shell API provides functions for running shell commands and interacting with processes.
+
+### shell.run(cmd, args, stdin?)
+Runs a shell command and returns its output.
+
+Parameters:
+- `cmd`: The command to run
+- `args`: Array of arguments to pass to the command
+- `stdin`: stdin string (optional)
+
+Returns an object with:
+- `stdout`: The standard output of the command
+- `stderr`: The standard error of the command
+- `code`: The exit code of the command
+
+Example:
+```lua
+local result = shell.run("ls", {"-l"})
+print("Output:", result.stdout)
+print("Error:", result.stderr)
+print("Exit code:", result.code)
+
+local result = shell.run("cat", {}, "hello")
+print("Output:", result.stdout) -- "hello"
+```