Added examples/hello.c - a minimalistic embedding example

examples/Makefile

-PROG=	chat
 CFLAGS=	-W -Wall -I.. -pthread -g
 
 all:
 	OS=`uname`; \
 	  test "$$OS" = Linux && LIBS="-ldl" ; \
-	  $(CC) $(CFLAGS) chat.c ../mongoose.c  $$LIBS $(ADD) -o $(PROG) 
-	./$(PROG)
+	  $(CC) $(CFLAGS) hello.c ../mongoose.c  $$LIBS $(ADD) -o hello;
+	  $(CC) $(CFLAGS) chat.c ../mongoose.c  $$LIBS $(ADD) -o chat

examples/hello.c

+#include <stdio.h>
+#include <string.h>
+#include "mongoose.h"
+
+static void *callback(enum mg_event event,
+                      struct mg_connection *conn,
+                      const struct mg_request_info *request_info) {
+  if (event == MG_NEW_REQUEST) {
+    // Echo requested URI back to the client
+    mg_printf(conn, "HTTP/1.1 200 OK\r\n"
+              "Content-Type: text/plain\r\n\r\n"
+              "%s", request_info->uri);
+    return "";  // Mark as processed
+  } else {
+    return NULL;
+  }
+}
+
+int main(void) {
+  struct mg_context *ctx;
+  const char *options[] = {"listening_ports", "8080", NULL};
+
+  ctx = mg_start(&callback, NULL, options);
+  getchar();  // Wait until user hits "enter"
+  mg_stop(ctx);
+
+  return 0;
+}