add .yammlint

.yamllint

@@ -1,56 +1,11 @@
 ---
+extends: default
 
 rules:
-  braces:
+  # 80 chars should be enough, but don't fail if a line is longer
-    min-spaces-inside: 0
-    max-spaces-inside: 0
-    min-spaces-inside-empty: -1
-    max-spaces-inside-empty: -1
-  brackets:
-    min-spaces-inside: 0
-    max-spaces-inside: 0
-    min-spaces-inside-empty: -1
-    max-spaces-inside-empty: -1
-  colons:
-    max-spaces-before: 0
-    max-spaces-after: 1
-  commas:
-    max-spaces-before: 0
-    min-spaces-after: 1
-    max-spaces-after: 1
-  comments:
-    level: warning
-    require-starting-space: true
-    min-spaces-from-content: 2
-  comments-indentation:
-    level: warning
-  document-end: disable
-  document-start:
-    level: warning
-    present: true
-  empty-lines:
-    max: 2
-    max-start: 0
-    max-end: 0
-  empty-values:
-    forbid-in-block-mappings: false
-    forbid-in-flow-mappings: false
-  hyphens:
-    max-spaces-after: 1
-  indentation:
-    spaces: consistent
-    indent-sequences: true
-    check-multi-line-strings: false
-  key-duplicates: enable
-  key-ordering: disable
   line-length:
-    max: 1000
+    max: 80
     level: warning
     allow-non-breakable-words: true
-    allow-non-breakable-inline-mappings: false
+  comments:
-  new-line-at-end-of-file: enable
+    min-spaces-from-content: 1
-  new-lines:
-    type: unix
-  trailing-spaces: enable
-  truthy:
-    level: warning