How to load an XML file into a Hash

source/loading_file.rst

+.. _loadfile:
+
+**************************************
+Loading an xml file into a Karabo Hash
+**************************************
+
+The next code example shows hot to load the content of an XML file into a Karabo
+Hash:
+
+.. code-block:: c++
+
+    // We assume the file is inside the Karabo installation
+    std::string file_path(karabo::util::Version::getPathToKaraboInstallation() + "/var/data/my_file.xml");
+    try {
+        Hash config;
+        Input<Hash>::Pointer input = Input<Hash>::create("TextFile", Hash("filename", file_path));
+        input->read(config);
+    } catch (std::exception& e) {
+        KARABO_LOG_FRAMEWORK_WARN << "Failed to load File: " << file_path << " : " << e.what();
+    }
+