chore(.licensure.yml): Also add the license text to markdown files

.licensure.yml

@@ -2,15 +2,13 @@
 # Regexes which if matched by a file path will always be excluded from
 # getting a license header
 excludes:
-  - \.gitignore
   - .*lock
   - \.git/.*
   - \.licensure\.yml
-  - README.*
   - LICENSE.spdx
   - COPYING
   - COPYING.LESSER
-  - .*\.(md|rst|txt|pdf)
+  - .*\.(rst|txt|pdf)
 # Definition of the licenses used on this project and to what files
 # they should apply.
 #
@@ -128,12 +126,14 @@ comments:
       per_line_char: "*"
       trailing_lines: 1
 
-  # In this case extension is singular and a single string extension is provided.
-  - extension: html
+  - extension:
+      - html
+      - md
     commenter:
       type: block
       start_block_char: "<!--\n"
-      end_block_char: "-->"
+      end_block_char: "-->\n"
+      trailing_lines: 1
 
   - extensions:
       - el