Add readme.md

examples/p2p_netcat/README.md

@@ -0,0 +1,51 @@
+# P2P NetCat
+
+Peer to peer netcat connection
+
+- Netcat with p2p connection
+- Connection through different internal network
+- No port forwarding required
+
+### Usage
+```
+Usage: p2pnc [-l] name
+
+  Options:
+    -l      Listen mode, for inbound connections
+
+Example:
+  > p2pnc -l random_id      : Listen randoom_id
+  > p2pnc random_id         : Connect to random_id
+```
+
+### Example
+
+##### 1. Anonymous chat
+
+Peer A (listen)
+```
+> p2pnc -l peer_a
+Listening peer_a
+Connected
+Hello~
+```
+Peer B (connect)
+```
+> p2pnc peer_a
+Connecting to peer_a
+Connected
+Hello~
+```
+
+##### 2. Send and receive file
+
+Quickly send and receive file between your devices without cloud server.
+
+Peer A (receive)
+```
+> p2pnc -l peer_a > dst_file.txt
+```
+Peer B (send)
+```
+> p2pnc peer_a < src_file.txt
+```