move UART bridge -> tutorials

tutorials/http/uart-bridge/README.md

@@ -0,0 +1,14 @@
+# A UART to network bridge
+
+This example is a demonstration of how Mongoose Library could be integrated
+into an embedded device and provide a UART-to-Network bridge capability:
+
+- The device opens listening TCP and Websocket ports and waits for connections
+- When a client connects, data is exchanged with the device's UART
+- Everything the client sends, is sent to the UART
+- Everything that is read from the UART, gets sent to the client
+- Multiple clients are allowed
+- Live UART console allows to talk to the UART from the web page
+- Web UI is hardcoded into the binary and does not need a filesystem
+
+See a detailed tutorial at https://mongoose.ws/tutorials/uart-bridge/