From 0ceeeb353f4e5436f312a1878301be0b2252b9a2 Mon Sep 17 00:00:00 2001
From: Pranav Srinivas Kumar <pranav.srinivas.kumar@gmail.com>
Date: Sat, 30 Mar 2019 18:45:54 -0400
Subject: [PATCH] Update README.md

---
 README.md | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/README.md b/README.md
index e69de29..f6d314f 100644
--- a/README.md
+++ b/README.md
@@ -0,0 +1,44 @@
+# Argument Parser
+
+## Simple Arguments
+
+```cpp
+#include <argparse.hpp>
+
+int main(int argc, char *argv[]) {
+  argparse::ArgumentParser program("main");
+  
+  program.add_argument("config")
+    .help("configuration file")
+    .default_value([]() { return "config.yml" });
+    
+  program.add_argument("n", "-n", "--num_iterations")
+    .help("The list of input files")
+    .action([](const std::string& value) { return std::stoi(value); });
+    
+  program.parse(argc, argv);
+  std::string config = program.get("config");
+  int num_iterations = program.get<int>("n");  
+  
+  return 0;
+}
+```
+
+## Parsing a list of arguments
+
+```cpp
+#include <argparse.hpp>
+
+int main(int argc, char *argv[]) {
+  argparse::ArgumentParser program("main");
+  
+  program.add_argument("--input_files")
+    .help("The list of input files")
+    .nargs(3);
+    
+  program.parse(argc, argv);
+  std::vector<std::string> files = program.get<std::vector<std::string>>("--input_files");  
+  
+  return 0;
+}
+```