[gnome-builder] Fix typo in Build Pipeline documentation

[Christian Hergert <chergert src gnome org>]

commit 4af10e649b09f94fc309984ec688c4bfd03902c6
Author: seeseemelk <sebastiaan de schaetzen gmail com>
Date:   Mon Mar 23 14:59:58 2020 +0000

    Fix typo in Build Pipeline documentation
    
    Fixes a simple typo in the documentation

 doc/help/plugins/building/pipeline.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/doc/help/plugins/building/pipeline.rst b/doc/help/plugins/building/pipeline.rst
index 95fe77ce1..3a5bea28b 100644
--- a/doc/help/plugins/building/pipeline.rst
+++ b/doc/help/plugins/building/pipeline.rst
@@ -5,7 +5,7 @@ Extending the Build Pipeline
 Builder uses the concept of a "Build Pipeline" to build a project. The build
 pipeline consistes of multiple "phases" and build "stages" run in a given phase.
 
-For example, in the ``Ide.PipelinePhase.DOWNLAODS`` phase, you might have a stage
+For example, in the ``Ide.PipelinePhase.DOWNLOADS`` phase, you might have a stage
 that downloads and installs the dependencies for your project. The Flatpak
 extension does this when building Flatpak-based project configurations.