fix examples indentation (#9295)

plugins/modules/yarn.py

@@ -88,38 +88,38 @@ requirements:
 """
 
 EXAMPLES = r"""
-  - name: Install "imagemin" Node.js package.
+- name: Install "imagemin" Node.js package.
   community.general.yarn:
     name: imagemin
     path: /app/location
 
-  - name: Install "imagemin" Node.js package on version 5.3.1
+- name: Install "imagemin" Node.js package on version 5.3.1
   community.general.yarn:
     name: imagemin
     version: '5.3.1'
     path: /app/location
 
-  - name: Install "imagemin" Node.js package globally.
+- name: Install "imagemin" Node.js package globally.
   community.general.yarn:
     name: imagemin
     global: true
 
-  - name: Remove the globally-installed package "imagemin".
+- name: Remove the globally-installed package "imagemin".
   community.general.yarn:
     name: imagemin
     global: true
     state: absent
 
-  - name: Install "imagemin" Node.js package from custom registry.
+- name: Install "imagemin" Node.js package from custom registry.
   community.general.yarn:
     name: imagemin
     registry: 'http://registry.mysite.com'
 
-  - name: Install packages based on package.json.
+- name: Install packages based on package.json.
   community.general.yarn:
     path: /app/location
 
-  - name: Update all packages in package.json to their latest version.
+- name: Update all packages in package.json to their latest version.
   community.general.yarn:
     path: /app/location
     state: latest