Add showcase

Author: petebachant

calkit.yaml

@@ -42,3 +42,6 @@ figures:
     title: The plot
     description: The plot.
     stage: plot-data
+
+showcase:
+  - figure: figures/plot.png

dvc.yaml

@@ -1,23 +1,23 @@
 stages:
   collect-data:
-    cmd: matlab -batch "run('scripts/collect_data.m');"
+    cmd: matlab -batch "restoredefaultpath; run('scripts/collect_data.m');"
     deps:
       - scripts/collect_data.m
       - src/myfunction.m
     outs:
       - data/raw/data.parquet:
           cache: true
           persist: false
-    desc: Automatically generated from the 'collect-data' stage in 
-      calkit.yaml. Changes made here will be overwritten.
+    desc: Automatically generated from the 'collect-data' stage in calkit.yaml.
+      Changes made here will be overwritten.
   plot-data:
-    cmd: matlab -batch "run('scripts/plot_data.m');"
+    cmd: matlab -batch "restoredefaultpath; run('scripts/plot_data.m');"
     deps:
       - scripts/plot_data.m
       - data/raw/data.parquet
     outs:
       - figures/plot.png:
           cache: true
           persist: false
-    desc: Automatically generated from the 'plot-data' stage in 
-      calkit.yaml. Changes made here will be overwritten.
+    desc: Automatically generated from the 'plot-data' stage in calkit.yaml.
+      Changes made here will be overwritten.