Increase yamllint coverage

Makes yamllinting execution to cover files that previously were not
linted in order to assure consistent formatting.

This also enables people to run yamllint without extra parameters
and avoid getting errors.

Signed-off-by: Sorin Sbarnea <[email protected]>

.github/dco.yml

@@ -1,2 +1,3 @@
+---
 require:
   members: false

.pyup.yml

@@ -1,3 +1,4 @@
+---
 # configure updates globally
 # default: all
 # allowed: all, insecure, False
@@ -6,11 +7,11 @@ update: all
 # configure dependency pinning globally
 # default: True
 # allowed: True, False
-pin: True
+pin: true
 
 # set the default branch
 # default: empty, the default branch on GitHub
-#branch:
+# branch:
 
 # update schedule
 # default: empty
@@ -20,22 +21,22 @@ schedule: every week
 # search for requirement files
 # default: True
 # allowed: True, False
-search: True
+search: true
 
 # Specify requirement files by hand, default is empty
 # default: empty
 # allowed: list
 requirements:
-# Add extra deps lookup location
-- tox.ini:
+  # Add extra deps lookup location
+  - tox.ini:
     # update all dependencies and pin them
     update: all
-    pin: True
-# Override defaults for dist metadata deps
-- setup.cfg:
+    pin: true
+  # Override defaults for dist metadata deps
+  - setup.cfg:
     # update insecure only, don't pin
     update: insecure
-    pin: False
+    pin: false
 
 # add a label to pull requests, default is not set
 # requires private repo permissions, even on public repos
@@ -46,18 +47,18 @@ label_prs: deps-update
 # requires private repo permissions, even on public repos
 # default: empty
 assignees:
-- themr0c
-- decentral1se
-- ssbarnea
+  - themr0c
+  - decentral1se
+  - ssbarnea
 
 # configure the branch prefix the bot is using
 # default: pyup-
 branch_prefix: pyup/
 
 # set a global prefix for PRs
 # default: empty
-#pr_prefix:
+# pr_prefix:
 
 # allow to close stale PRs
 # default: True
-close_prs: True
+close_prs: true

.readthedocs.yml

@@ -1,3 +1,4 @@
+---
 version: 2
 
 formats: all
@@ -8,7 +9,7 @@ build:
 python:
   version: 3.7
   install:
-  - method: pip
-    path: .
-    extra_requirements:
-    - docs
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs