add recommendations

docs/specification/index.md

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 A FAIR-IO bundle combines the necessary acquisition and provenance metadata together with multi-resolution, chunked binary data in a single cloud-compatible format for simplified sharing and re-use.
 
 ![FAIR-IO concept](FAIR-IO_10.5281-zenodo.10512531.png)
+
+## Recommendations for easily sharable binary data: 
+<div>
+<table style="margin-left:5px;">
+<tr>
+    <td style="text-align:left;"><img src="FAIR-IO_inner.png" style="width:120px; float:left" ></td>
+    <td>
+        <ul>
+          <li>Use data formats that store binary data with multiple resolutions in a single cloud-compatible, chunkable format. These enable web-optimised data access and high-performance cloud storage</li>
+          <li>Store data in a public available space accessible via a data specific URL</li> 
+        </ul>
+        <b>Serialization example:</b> ome-zarr (<a href="https://doi.org/10.1007/s00418-023-02209-1"> About</a> |<a href=""> Tools</a>)
+    </td>
+</tr>
+
+</table>
+</div>
+
+
+## Recommendations for easily sharable metadata:
+<div>
+<table style="margin-left:5px;">
+<tr>
+    <td style="text-align:left;"><img src="FAIR-IO_middle.png" style="width:80px; float:left" ></td>
+    <td>
+        <ul>
+          <li>Ensure that the relationship and meaning of the data is clear described or linked</li>
+          <li>Use metadata formats that store metadata in a machine readable form, that means </li>
+          <li>store data in a public available space accessible via a data specific URL</li> 
+        </ul>
+        <b>Serialization example:</b> JSONLD (<a href=""> About</a> |<a href=""> Tools</a>), Turtle (<a href=""> About</a> |<a href=""> Tools</a>)
+    </td>
+</tr>
+
+</table>
+</div>
+
+
+
+
+
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+