Fix non-self-closing <br> tags in configuration.md

[Copilot]

configuration.md contained 62 instances of <br> (non-self-closing), which are invalid in XHTML/XML contexts.

Changes

• quickfixj-core/src/main/doc/usermanual/usage/configuration.md: Global replace of <br> → <br/> throughout all table cells where multiple valid values are listed inline.

Before / After

`initiator`<br>`acceptor`        <!-- before -->
`initiator`<br/>`acceptor`       <!-- after -->

`Y`<br>`N`                       <!-- before -->
`Y`<br/>`N`                      <!-- after -->

Original prompt

Fix unmatched <br> tags in configuration.md

In the file quickfixj-core/src/main/doc/usermanual/usage/configuration.md, there are numerous <br> tags used inside Markdown table cells to separate multiple valid values. These are not self-closing (i.e., they use <br> instead of <br/>), which is not valid in XML/XHTML contexts.

Task

Replace all occurrences of <br> with <br/> in the file:

File: quickfixj-core/src/main/doc/usermanual/usage/configuration.md

This affects many lines throughout the file, including but not limited to:

• Line 62: `FIX.4.4`<br>`FIX.4.3`<br>...
• Line 71: `initiator`<br>`acceptor`
• Line 78–80: `Y`<br>`N` and similar
• Line 79: `SECONDS`<br>`MILLIS`<br>`MICROS`<br>`NANOS`
• Lines 88–107: many rows with `Y`<br>`N`
• Lines 122, 125, 138: `TCP`<br>`VM_PIPE`
• Lines 148, 157, 161, 170, 171 and many more

Expected Change

Every <br> in the file should be replaced with <br/> to be XHTML-compliant self-closing tags.

Please do a global find-and-replace of <br> → <br/> within that single file only.

The following is the prior conversation context from the user's chat exploration (may be truncated):

User: Find any unmatched br tags

Assistant: After scanning the file for <br> tags, all of them are self-closing (<br>) used inside Markdown table cells as line separators between list-like values. This is a common HTML pattern in Markdown tables.

Here's a review of how they are used:

All <br> tags in the file are used as inline separators within table cells to list multiple valid values (e.g., `Y`<br>`N`). In Markdown/HTML, <br> is a void element — it does not require a closing tag, and none is expected.

✅ No unmatched <br> tags were found. Every <br> in the file is a standalone void element used correctly. There are no instances of <br> paired with </br>, and none are left dangling in an unexpected context.

If you were looking for <br> tags that are missing their matching </br> closing counterpart in an XML-strict context (e.g., XHTML), then all occurrences would technically be "unmatched." Here's a summary of those lines:

Line	Content (abbreviated)
62	`FIX.4.4`<br>`FIX.4.3`<br>...
71	`initiator`<br>`acceptor`
78	`Y`<br>`N`
79	`SECONDS`<br>`MILLIS`<br>`MICROS`<br>`NANOS`
80	`Y`<br>`N`
88–107	Many rows with `Y`<br>`N`
122, 125, 138	`TCP`<br>`VM_PIPE`
148, 157, 161, etc.	`Y`<br>`N`
170, 171	Proxy type/version values

Would you like me to open a PR to convert these to <br/> (XHTML-compliant self-closing tags), or is this purely an audit?

User: Please open pr

Assistant: I'm waiting for your response to the confirmation dialog to proceed with opening the pull request.

This pull request was created from Copilot chat.

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