Add k6-studio to Makefile

Signed-off-by: Jack Baldry <[email protected]>

docs/variables.mk

@@ -5,5 +5,4 @@
 # The source of the content is the `/docs/sources` directory, which is the script default if not explicitly set.
 # The `docs/sources` directory is found within the current repository checkout determined by the name of the directory of the git root.
 # This overrides the default behavior of assuming the repository directory is the same as the project name.
-PROJECTS := k6:UNVERSIONED:$(notdir $(basename $(shell git rev-parse --show-toplevel)))
-export WEBSITE_MOUNTS := true
+PROJECTS := k6:UNVERSIONED:$(notdir $(basename $(shell git rev-parse --show-toplevel))):docs/sources/k6 k6-studio:UNVERSIONED:$(notdir $(basename $(shell git rev-parse --show-toplevel))):docs/sources/k6-studio