Merge branch '3-fix-versions-in-requirements-txt' into 'clickable-image'

pip install -r requirements.txt

```

 **NOTE:** The installation could fail with the next message if the package `libxt-dev` is not found in your OS:

```bash

xtloop.c:9:10: fatal error: X11/Intrinsic.h: No such file or directory

    9 | #include <X11/Intrinsic.h>

      |          ^~~~~~~~~~~~~~~~~

```

To solve that, you can install it with the following commands:

- openSUSE: `sudo zypper install libXt-devel`

- Debian / Ubuntu: `sudo apt-get install libxt-dev`

- Fedora: `sudo dnf install libXt-devel`

Then, run again: `pip install -r requirements.txt`

## Usage

To run the included example, execute the following command on the installation directory (with the activated enviroment):

pandas

pyqt5

matplotlib

astropy

requests

Pillow

pyds9

pandas==2.0.1

PyQt5==5.15.9

matplotlib==3.7.1

astropy==5.3

requests==2.31.0

Pillow==9.5.0

pyds9==1.8.1