Remove spaces around brackets in frontmatter

lint/frontmatter.py

@@ -19,14 +19,14 @@ def extract_yaml_frontmatter(file_path):
 
 yaml_config = yamllint.config.YamlLintConfig(
     """{
-        extends: relaxed, 
+        extends: default,
         rules: {
             commas: disable,
             trailing-spaces: disable,
             indentation: disable,
             line-length: disable,
             empty-lines: disable
-        } 
+        }
     }"""
 )
 

nmap.md

@@ -2,7 +2,7 @@
 name: Nmap
 category: tool
 contributors:
-  - [ "Sebastian Oberdorfer" , "https://github.com/SOberdorfer" ]
+    - ["Sebastian Oberdorfer", "https://github.com/SOberdorfer"]
 ---
 
 ### Learn Nmap in Y Minutes