ci: update .markdown-lint.yml

Author: mvprowess

.github/linters/.markdown-lint.yml

@@ -4,11 +4,11 @@
 # MD013/line-length : Line length : https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md013.md
 MD013:
   # Number of characters
-  line_length: 600
+  line_length: 240
   # Number of characters for headings
-  heading_line_length: 80
+  heading_line_length: 300
   # Number of characters for code blocks
-  code_block_line_length: 80
+  code_block_line_length: 120
   # Include code blocks
   code_blocks: true
   # Include headings
@@ -19,7 +19,7 @@ MD013:
 # MD033/no-inline-html : Inline HTML : https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md033.md
 MD033:
   # Allowed elements
-  allowed_elements: ['img']
+  allowed_elements: ['img', 'a']
 
 # MD034/no-bare-urls : Bare URL used : https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md034.md
 # NOTE: disabled because the tables in the READMEs might contain chart values which are bare URLs
@@ -28,4 +28,4 @@ MD034: false
 # MD036/no-emphasis-as-heading : Emphasis used instead of a heading : https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md036.md
 MD036:
   # Punctuation characters
-  punctuation: ".,;:!?。，；：！？_"
+  punctuation: ".,;:!?。，；：！？"