[pygobject] `cairo-gobject-devel` is needed for Fedora

[Patrick Griffis <pgriffis src gnome org>]

commit c8518e12a10e04a1d6cd7c3ffd685f08fdca7194
Author: Anatoli Babenia <anatoli rainforce org>
Date:   Sun Jan 17 17:42:14 2021 +0000

    `cairo-gobject-devel` is needed for Fedora

 docs/getting_started.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/docs/getting_started.rst b/docs/getting_started.rst
index a2f53dd3..43b48d2a 100644
--- a/docs/getting_started.rst
+++ b/docs/getting_started.rst
@@ -91,7 +91,7 @@ Installing the system provided PyGObject:
 
 Installing from PyPI with pip:
   #) Open a terminal and enter your virtual environment
-  #) Execute ``sudo dnf install gcc gobject-introspection-devel cairo-devel pkg-config python3-devel gtk3``
+  #) Execute ``sudo dnf install gcc gobject-introspection-devel cairo-gobject-devel pkg-config python3-devel 
gtk3``
      to install the build dependencies and GTK
   #) Execute ``pip3 install pycairo`` to build and install Pycairo
   #) Execute ``pip3 install PyGObject`` to build and install PyGObject