fix md links

Author: poldrack

positions.md

@@ -5,4 +5,4 @@ format:
     page-layout: full
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-The Poldrack lab is always looking for talented graduate students and postdoctoral researchers interested in our core research topics.  See our current list of [research projects](projects) to learn more about the lab's ongoing work, and the [lab mentoring policies](labguide/mentoring) to learn more about the graduate programs that the laboratory is affiliated with and Dr. Poldrack's mentoring philosophy.
+The Poldrack lab is always looking for talented graduate students and postdoctoral researchers interested in our core research topics.  See our current list of [research projects](projects.html) to learn more about the lab's ongoing work, and the [lab mentoring policies](labguide/mentoring/mentoring.html) to learn more about the graduate programs that the laboratory is affiliated with and Dr. Poldrack's mentoring philosophy.