chore(docs): fix markdownlint issues (no-bare-urls, duplicate headings, table spacing)

Author: KingPin

README.md

@@ -33,33 +33,38 @@ See [v1 vs v2 comparison](#v1-vs-v2-comparison) below for details.
 The following environment variables can be overridden when running containers:
 
 ### Memory Settings
+
 | Variable | Default | Description |
 |----------|---------|-------------|
 | `PHP_MEMORY_LIMIT` | `256M` | Maximum memory a script can consume |
 | `PHP_OPCACHE_MEMORY_CONSUMPTION` | `128` | OPCache memory consumption limit |
 | `PHP_OPCACHE_INTERNED_STRINGS_BUFFER` | `16` | OPCache interned strings buffer |
 
 ### Upload Settings
+
 | Variable | Default | Description |
 |----------|---------|-------------|
 | `PHP_UPLOAD_MAX_FILESIZE` | `64M` | Maximum allowed size for uploaded files |
 | `PHP_POST_MAX_SIZE` | `64M` | Maximum size of POST data allowed |
 | `PHP_MAX_FILE_UPLOADS` | `20` | Maximum number of files allowed for upload |
 
 ### Execution Settings
+
 | Variable | Default | Description |
 |----------|---------|-------------|
 | `PHP_MAX_EXECUTION_TIME` | `300` | Maximum execution time of scripts (seconds) |
 | `PHP_MAX_INPUT_VARS` | `1000` | Maximum input variables allowed |
 
 ### Error Handling
+
 | Variable | Default | Description |
 |----------|---------|-------------|
 | `PHP_ERROR_REPORTING` | `E_ALL` | Error reporting level |
 | `PHP_DISPLAY_ERRORS` | `Off` | Display errors in output |
 | `PHP_LOG_ERRORS` | `On` | Log errors to error log |
 
 ### Other Settings
+
 | Variable | Default | Description |
 |----------|---------|-------------|
 | `PHP_DATE_TIMEZONE` | `UTC` | Default timezone |

docs/migration.md

@@ -86,8 +86,8 @@ If you encounter issues:
    ```
 
 3. **Report the issue**:
-   - Open an issue: https://github.com/kingpin/php-docker/issues
-   - Include: PHP version, image tag, error logs, and reproduction steps
+- Open an issue: [Report an issue on GitHub](https://github.com/kingpin/php-docker/issues)
+- Include: PHP version, image tag, error logs, and reproduction steps
 
 ### FAQ
 
@@ -404,7 +404,7 @@ Compare:
 - Memory usage
 - CPU usage
 
-## Rollback Plan
+## Quick rollback
 
 If you encounter issues, rolling back is simple: