doc/plugin_list Markdown table syntax compatibility - empty line missing before tables

[git-user314]

Markdown tables in doc/plugin_list_*.md files are not detected as tables with some Markdown implementations, because there is no empty line between the table and the previous paragraph.

If validator.py were to be edited to place empty lines where approriate, the Markdown syntax of these files would be more compatible with different Markdown implementations.

This issue can be seen for example by using "Pandoc" or "Pandoc GitHub-flavored Markdown" preview options with ghostwriter Markdown editor, whereas "cmark-gfm" option does work correctly.

Related links:

• Implementation of the plugin list .md generation:
  • issue #158
  • PR #177
• Markdown tables (but these don't mention requiring empty lines(?)):
  • Pandoc Markdown tables: https://pandoc.org/MANUAL.html#tables
  • GFM tables: https://github.github.com/gfm/#tables-extension-

[git-user314]

I opened PR #604, artifacts of the of automatically queued AppVeyor build npppluginlist-yy2vy show that the changes work as I intended:

• One empty line between the heading, paragraph, and the table
• In table header row: one space between "Plugin name" and the | character before it

[chcg]

Updated md files from PR #604 with https://github.com/notepad-plus-plus/nppPluginList/commit/0d85c48de0918267bd82d20e6c2c8f1a11e12c2d