Forest-structure-metrics-mapping.md

@@ -3,11 +3,11 @@ This `R` tutorial presents a workflow to compute both object-oriented and pixel-
 The following files are provided:
 * [Rmarkdown source](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/blob/master/R/forest.structure.metrics.Rmd),
 * [**Forest structure metrics mapping tutorial in html**](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/raw/master/export/forest.structure.metrics.html?inline=false),
-* [Forest structure metrics mapping tutorial in pdf](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/blob/master/export/forest.structure.metrics.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.
 
 Change log
+* Dec. 27, 2021: future.apply package used for parallelization
 * Aug 3, 2021: updated to comply with lidaRtRee 3.1.0
 * Jan 2021: updated to comply with lidR 3.1.0 and lidaRtRee 3.0.0
 * Oct, 2020: checked compatibility with lidR 3.0.3