Adding a few more URLs

bin/lesson_initialize.py

@@ -197,14 +197,16 @@ repository: <USERNAME>/<PROJECT>
 
 # Sites.
 amy_site: "https://amy.software-carpentry.org/workshops"
-dc_site: "https://datacarpentry.org"
+dc_site: "http://datacarpentry.org"
 swc_github: "https://github.com/swcarpentry"
 swc_site: "https://software-carpentry.org"
+swc_pages: "https://swcarpentry.github.io"
 template_repo: "https://github.com/swcarpentry/styles"
 example_repo: "https://github.com/swcarpentry/lesson-example"
 example_site: "https://swcarpentry.github.com/lesson-example"
 workshop_repo: "https://github.com/swcarpentry/workshop-template"
 workshop_site: "https://swcarpentry.github.io/workshop-template"
+training_site: "https://swcarpentry.github.io/instructor-training"
 
 # Surveys.
 pre_survey: "https://www.surveymonkey.com/r/swc_pre_workshop_v1?workshop_id="