Add permissions key to workflows and example (#74)

.github/workflows/additional_files.yml

@@ -5,6 +5,8 @@ on:
     branches: ["master"]
   pull_request:
 
+permissions: {}
+
 jobs:
   additional_files:
     name: additional_files

.github/workflows/check_together.yml

@@ -5,6 +5,8 @@ on:
     branches: ["master"]
   pull_request:
 
+permissions: {}
+
 jobs:
   check_together:
     name: check_together

.github/workflows/ignore_names.yml

@@ -5,6 +5,8 @@ on:
     branches: ["master"]
   pull_request:
 
+permissions: {}
+
 jobs:
   ignore_names:
     name: ignore_names

.github/workflows/ignore_paths.yml

@@ -5,6 +5,8 @@ on:
     branches: ["master"]
   pull_request:
 
+permissions: {}
+
 jobs:
   ignore_paths:
     name: ignore_paths

.github/workflows/scandir.yml

@@ -5,6 +5,8 @@ on:
     branches: ["master"]
   pull_request:
 
+permissions: {}
+
 jobs:
   scandir:
     name: scandir

README.md

@@ -11,6 +11,7 @@ on:
       - master
 
 name: "Trigger: Push action"
+permissions: {}
 
 jobs:
   shellcheck: