Fix link format for two-year roadmap

Updated the link to the two-year roadmap for ongoing projects.

Signed-off-by: Jan Petr <j.petr@hzdr.de>

Author: jan-petr

docs/tf/tf5-2.md

@@ -29,4 +29,4 @@ The task force maintains a curated bibliography of key manuscripts in perfusion
 
 ## Ongoing projects
 
-The task force is currently working on a first set of videos explaining the concepts of perfusion imaging. At the same time, the task force is working on the bibliography. More details are available in the [two-year roadmap](https://docs.google.com/document/d/1FzOFMV420xew2oiSDq4Wi3tRZ45if73Rw-6at2hKNFw/edit#bookmark=id.kx8yo4cql0zk).
+The task force is currently working on a first set of videos explaining the concepts of perfusion imaging. At the same time, the task force is working on the bibliography. More details are available in the [two-year roadmap](https://docs.google.com/document/d/e/2PACX-1vQqOATrWE2COIXq4qTkEe1Bix26GVr_-YTKUJbevCPXXFJf_nMKH3_Nw3DMsY2BcZHPKBG3EOg4SU4r/pub).