Add missing external tag to tutorials

Author: petrasovaa

CONTRIBUTING.md

@@ -127,23 +127,23 @@ You can either specify it in the YAML header (`image: image.webp`) or add `{.pre
 
 If you want to have your GRASS external tutorials listed, you can create a `.yml` file
 within the `content/tutorials/external` folder with the tutorial(s) you want to include.
-See an example below:
+See an example below (note the added `external` tag):
 
 ``` yaml
-- title: Species distribution modeling using Maxent in GRASS GIS
+- title: Species distribution modeling using Maxent in GRASS
   path: https://ecodiv.earth/TutorialsNotes/sdmingrassgis/
   author: Paulo van Breugel
   image: content/tutorials/external/images/sdm_in_grass_tutorialbanner.png
   date: "2025-02-12"
   description: Species distribution models to predict the current and future distribution of the Almond-eyed Ringlet.
-  categories: ['biogeography', 'ecology', 'intermediate', 'advanced']
+  categories: ['biogeography', 'ecology', 'intermediate', 'advanced', 'external']
 - title: Density distribution map of white-tailed deer
   path: https://ecodiv.earth/TutorialsNotes/deerdensities/index.html
   author: Paulo van Breugel
   image: content/tutorials/external/images/deer-density-tile.png
   date: "2025-01-10"
   description: Habitat suitability map for the white-tailed deer using spatial multicriteria analysis and spatial disaggregation in GRASS.
-  categories: ['biogeography', 'MCDA', 'ecology', 'intermediate']
+  categories: ['biogeography', 'MCDA', 'ecology', 'intermediate', 'external']
 ```
 
 Then, you need to add the path to your `.yml` file in the header of the

content/tutorials/external/ecodiv.yml

@@ -1,28 +1,28 @@
-- title: Species distribution modeling using Maxent in GRASS GIS
+- title: Species distribution modeling using Maxent in GRASS
   path: https://ecodiv.earth/TutorialsNotes/sdmingrassgis/
   author: Paulo van Breugel
   image: content/tutorials/external/images/sdm_in_grass_tutorialbanner.png
   date: "2025-02-12"
   description: Species distribution models to predict the current and future distribution of the Almond-eyed Ringlet.
-  categories: ['biogeography', 'ecology', 'intermediate', 'advanced']
+  categories: ['biogeography', 'ecology', 'intermediate', 'advanced', 'external']
 - title: Density distribution map of white-tailed deer
   path: https://ecodiv.earth/TutorialsNotes/deerdensities/index.html
   author: Paulo van Breugel
   image: content/tutorials/external/images/deer-density-tile.png
   date: "2025-01-10"
   description: Habitat suitability map for the white-tailed deer using spatial multicriteria analysis and spatial disaggregation in GRASS.
-  categories: ['biogeography', 'MCDA', 'ecology', 'intermediate']
+  categories: ['biogeography', 'MCDA', 'ecology', 'intermediate', 'external']
 - title: From suitability to suitable regions
   path: https://ecodiv.earth/TutorialsNotes/SuitabilityRegions/index.html
   author: Paulo van Breugel
   image: content/tutorials/external/images/suitability-regions-tile.png
   date: "2024-05-25"
   description: Use a suitability map to identify and map regions with defined minimum suitability scores and area size.
-  categories: ['biogeography', 'MCDA', 'ecology', 'beginner']
+  categories: ['biogeography', 'MCDA', 'ecology', 'beginner', 'external']
 - title: Tree species diversity distribution
   path: https://ecodiv.earth/post/tree-species-diversity-distribution/
   author: Paulo van Breugel
   image: content/tutorials/external/images/tree-diversity-tile.png
   date: "2020-07-29"
   description: Create maps of tree species diversity across the contiguous USA, using various diversity indices.
-  categories: ['biodiversity', 'geobiogeography', 'ecology', 'beginner']
+  categories: ['biodiversity', 'geobiogeography', 'ecology', 'beginner', 'external']

content/tutorials/external/huidae_courses.yml

@@ -4,11 +4,11 @@
   image: content/tutorials/external/images/deforestation_tutorial.png
   date: "2022-03-25"
   description: Estimate the forest change rate and learn some GRASS basic concepts.
-  categories: ['bash', 'Python', 'beginner']
+  categories: ['bash', 'Python', 'beginner', 'external']
 - title: Physically-based hydrologic modeling using GRASS r.topmodel
   path: https://workshop.isnew.info/nsf-pose-2025-r.topmodel/
   author: Huidae Cho
   image: content/tutorials/external/images/subwatersheds-streams-watershed.png
   date: "2025-01-31"
   description: Workshop introducing the r.topmodel tool for hydrologic modeling.
-  categories: ['bash', 'R', 'intermediate', 'hydrology']
+  categories: ['bash', 'R', 'intermediate', 'hydrology', 'external']

content/tutorials/external/unleash_the_power_of_GRASS_GIS.qmd

@@ -1,5 +1,5 @@
 ---
-title: "Unleash the power of GRASS GIS"
+title: "Unleash the power of GRASS"
 author: "Anna Petrasova"
 date: 01/01/2023
 format: