CI: don't run for website/readme updates

Author: Kade-N

.github/workflows/build.yml

@@ -1,6 +1,14 @@
 name: modapi-launcher-kit
 
-on: [push, pull_request]
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - 'README.md'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - 'README.md'
 
 jobs:
   build:
@@ -162,4 +170,4 @@ jobs:
             Headers = @{Authorization="Bearer $env:CF_PURGECACHE_TOKEN"}
             Body    = '{"hosts":["update.launcherkit.sporecommunity.com"]}'
           }
-          Invoke-WebRequest @params
+          Invoke-WebRequest @params