Add redirects from Readme.html to README.html

This commit adds redirection only to pages previously rendered
as Readme.html.

The change is only applied to pages associated with a front matter
because the one without it are always rendered as "index.html"
whether they were named Readme.md, readme.md, or README.md

Author: jcfr

PW39_2023_Montreal/BreakoutSessions/RenderingBreakout/README.md

@@ -1,6 +1,9 @@
 ---
 layout: pw39-project
 
+redirect_from:
+- /PW39_2023_Montreal/BreakoutSessions/RenderingBreakout/Readme.html
+
 project_title: The future of rendering in VTK and Slicer
 
 key_investigators:

PW39_2023_Montreal/Projects/SlicerVRInteraction/README.md

@@ -1,6 +1,9 @@
 ---
 layout: pw39-project
 
+redirect_from:
+- /PW39_2023_Montreal/Projects/SlicerVRInteraction/Readme.html
+
 project_title: SlicerVR - Restore Interactions
 category: VR/AR and Rendering
 

PW39_2023_Montreal/README.md

@@ -1,4 +1,7 @@
 ---
+redirect_from:
+- /PW39_2023_Montreal/Readme.html
+
 project_categories:
 - VR/AR and Rendering
 - IGT and Training

_config.yml

@@ -4,8 +4,12 @@ repository: NA-MIC/ProjectWeek
 
 plugins:
   - jekyll-mentions
+  - jekyll-redirect-from
   - jemoji
 
+redirect_from:
+  json: false
+
 # Exclude from processing.
 # The following items will not be processed, by default.
 # Any item listed under the `exclude:` key here will be automatically added to