Update README.md

README.md

@@ -10,3 +10,15 @@ loading driver from buffer.
 std::vector<std::uint8_t> drv_buffer(...);
 const auto[result, reg_key] = driver::load(drv_buffer.data(), drv_buffer.size());
 ```
+
+load driver from path on disk.
+
+```cpp
+const bool result = driver::load("image.sys", "image_key");
+```
+
+unloading driver.
+
+```cpp
+const bool result = driver::unload("image_key");
+```