Find the Markdown syntax in Grav's documentation for three specific formatting needs: how to create a table with right-aligned text in one column, how to link to an internal 'About' page using a slug-relative path, and how to create an external link to 'grav.org' that opens in a new browser tab. Provide the Markdown for each.
Navigate to 'learn.getgrav.org'. From the left navigation, click on 'Markdown Syntax' under 'Content'. From the 'Quick Menu' on the 'Markdown Syntax' page, click on 'Right aligned text' under 'Tables'. From the left navigation, click on 'Page Linking' under 'Content'. From the 'Quick Menu' on the 'Page Linking' page, click on 'Slug Relative'. From the 'Quick Menu' on the 'Page Linking' page, click on 'Link Attributes'. Provide the Markdown syntax for all three requested elements.
Provide the Markdown syntax for a table demonstrating right-alignment in at least one column, similar to `| Header |
| ---: |`. Provide the Markdown syntax for a slug-relative link to an 'About' page, similar to `[About Page](/about)`. Provide the Markdown syntax for an external link to 'grav.org' that opens in a new tab, similar to `[Grav Website](https://getgrav.org){target="_blank"}`.