limit python build runs to push/pr against python code (#20)

* limit python build runs to push/pr against python code

* add test changes to triggering events in python-app.yml

* limit markdown lint runs to when md files change

* include markdown lint workflow itself as part of the trigger

.github/workflows/lint_md_changes.yml

@@ -1,5 +1,13 @@
 name: "Lint Markdown (Changes)"
-on: [push, pull_request]
+on:
+  push:
+    paths:
+      - '**/*.md'
+      - .github/workflows/lint_md_changes.yml
+  pull_request:
+    paths:
+      - '**/*.md'
+      - .github/workflows/lint_md_changes.yml
 
 jobs:
   lint:

.github/workflows/python-app.yml

@@ -6,8 +6,18 @@ name: Python application
 on:
   push:
     branches: [ "main" ]
+    paths:
+      - vultron/**
+      - test/**
+      - pyproject.toml
+      - .github/workflows/python-app.yml
   pull_request:
     branches: [ "main" ]
+    paths:
+      - vultron/**
+      - test/**
+      - pyproject.toml
+      - .github/workflows/python-app.yml
 
 permissions:
   contents: read