Documentation issue - broken link in "Formula filter - Freeplane Documentation" #126
Description
Describe the bug
Broken link in "Formula filter - Freeplane Documentation"
To Reproduce
There is a link to groovycookbook.org (http://groovycookbook.org/basic_types/dates_times/#dates_times-UsingGroovy%27sTimeCategory)
in the documentation section on filtering entitled "Formula filter - Freeplane Documentation" (https://docs.freeplane.org/scripting/Scripting!_Script_filter.html)
See text near the bottom of the page that reads "Now, to filter for all nodes that have changed within the last 2 hours (see Groovy dates and times )"
The link is broken, and the domain no longer exists.
I =was= able to find a fairly extensive tutorial in the form of a blog by Szymon Stepniak entitled
"Groovy Cookbook: Groovy programming language tutorials and howtos."
https://e.printstacktrace.blog/groovy-cookbook/
Whether the broken link can be replaced by one to a page in the blog, I don't know.
There is also "Groovy Language Documentation" under groovy-lang.org
https://docs.groovy-lang.org/docs/latest/html/documentation/
Expected behavior
Transition to web page(s) explaining Groovy dates and times.
Mind map files
n/a
Screenshots
If applicable, add screenshots to help explain your problem.
Additional context
As an aside, the page "Formula filter" doesn't seem to address the topic in any general sense. I hope I've just not identified the right place to look. My confusion is compounded by the seeming lack of page titles. For example, when one follows a link to "Formula filter" one gets to a page that starts off with a bulleted item entitled "Node modification date" which is a link to the sole substantive section of the page. I also note that there is a statement reading "Here after some samples will show you what you can do" without such content. NOTE: I DEEPLY RESPECT THE DIFFICULTY OF THE TASK OF CREATING ONLINE DOCUMENTATION AND MAINTAINING IT!! I'd offer to help out if I weren't such an uneducated newbie.