Tree-segmentation.md

@@ -7,12 +7,12 @@ This workflow implements in `R` a tree segmentation on Airborne Laser Scanning (
 The following files are provided:
 * [Rmarkdown source](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/blob/master/R/tree.detection.Rmd),
 * [**Tree segmentation tutorial in html**](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/raw/master/export/tree.detection.html?inline=false),
-* [Tree segmentation tutorial in pdf](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/blob/master/export/tree.detection.pdf),
 * a [bibliography file](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/blob/master/bib/bibliography.bib)
 * datasets required to run the source code are also available on the repository.
 
 
 Changelog
+* Dec. 27, 2021: future.apply package used for parallelization
 * Oct 4, 2021: added classification predictions, `future` used in batch processing
 * Aug 3, 2021: updated to comply with lidaRtRee 3.1.0
 * Jan 26, 2021: updated to comply with package `lidR` 3.1.0 and `lidaRtRee` 3.0.0