Fix TreeView root index.

Parent folders will now be hidden based on the root folder selection in
the GUI.

README.md

@@ -19,6 +19,24 @@ And of course, [Rust](https://www.rust-lang.org/tools/install).
 curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
 ```
 
+## Dependencies
+
+This project requires at least Qt 6.7. To check your Qt version
+
+```bash
+qmake6 -query QT_VERSION
+```
+
+Use the [Qt Installer](https://www.qt.io/development/download) to download and install the Qt version of your choice.
+
+**You must set the QMAKE variable before building clide**. This should be a path to `qmake6` binary installed on your system.
+The following export is the default installation path for Qt 6.7 on Ubuntu 24.04
+
+```bash
+export QMAKE=$HOME/Qt/6.7.3/gcc_64/bin/qmake6
+export LD_LIBRARY_PATH=$HOME/Qt/6.7.3/gcc_64/lib
+```
+
 ## Usage 
 
 To install and run clide