reverse ignoring logic (#315)

Author: lrnv

.github/workflows/CI.yml

@@ -3,21 +3,23 @@ on:
   pull_request:
     branches:
       - main
-    paths-ignore:
-      - 'docs/**'
-      - '**/*.md'
-      - 'CITATION.*'
-      - '.github/workflows/Documenter.yml'
+    paths:
+      - 'src/**'
+      - 'ext/**'
+      - 'test/**'
+      - 'Project.toml'
+      - '.github/workflows/CI.yml'
   push:
     tags:
       - '*'
     branches:
       - main
-    paths-ignore:
-      - 'docs/**'
-      - '**/*.md'
-      - 'CITATION.*'
-      - '.github/workflows/Documenter.yml'
+    paths:
+      - 'src/**'
+      - 'ext/**'
+      - 'test/**'
+      - 'Project.toml'
+      - '.github/workflows/CI.yml'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}