Clean up markdown lint violations in OpenBolt docs

[miharp]

The OpenBolt documentation (docs/_openbolt_5x/) was ported from upstream Puppet Bolt docs and contains widespread markdown style violations that the project's lint rules flag. A per-directory .markdownlint.yaml suppresses these rules for now so the initial import can land, but they should be fixed in a follow-up pass.

Rules to fix

Rule	Violations	Description
MD060/table-column-style	260	Table columns not padded to aligned_delimiter width
MD009/no-trailing-spaces	136	Trailing spaces throughout source
MD031/blanks-around-fences	132	Fenced code blocks missing surrounding blank lines
MD030/list-marker-space	132	Extra spaces after list markers
MD040/fenced-code-language	123	Fenced code blocks without a language specifier
MD036/no-emphasis-as-heading	120	Bold/italic used as informal headings
MD033/no-inline-html	86	Inline HTML beyond what the root config permits
MD032/blanks-around-lists	64	Lists not surrounded by blank lines
MD049/emphasis-style	26	Inconsistent emphasis delimiter
MD004/ul-style	22	Inconsistent unordered list markers
MD007/ul-indent	18	Unordered list indentation
MD027/no-multiple-space-blockquote	13	Multiple spaces after blockquote marker
MD014/commands-show-output	11	Shell commands with $ prefix followed by output
MD013/line-length	9	Lines exceeding the 210-char root limit
MD051/link-fragments	6	Link fragments referencing headings that don't exist
MD055/table-pipe-style	4	Inconsistent table pipe style
MD047/single-trailing-newline	4	Files missing a trailing newline
MD045/no-alt-text	4	Images without alt text
MD034/no-bare-urls	4	Bare URLs
MD029/ol-prefix	4	Ordered list prefix style
MD022/blanks-around-headings	4	Headings not surrounded by blank lines
MD024/no-duplicate-heading	2	Duplicate sibling headings
MD025/single-title	1	Multiple H1 headings
MD056/table-column-count	1	Inconsistent column count across table rows
MD028/no-blanks-blockquote	1	Blank line inside block quote
MD010/no-hard-tabs	1	Hard tabs

Notes

• MD036 (bold-as-heading) and MD033 (inline HTML) require human judgment — converting bold to headings changes document structure.
• MD040 (missing code language) requires identifying the correct language for each block.
• MD051 (broken link fragments) requires finding or correcting the target anchors.
• The remaining rules (trailing spaces, blank lines, list spacing) are safe to auto-fix with markdownlint-cli2 --fix.

When this is resolved, remove docs/_openbolt_5x/.markdownlint.yaml.