diff --git a/doc/RFC.md b/doc/RFC.md
index c724898..3f69b19 100644
--- a/doc/RFC.md
+++ b/doc/RFC.md
@@ -4,7 +4,7 @@
 
 > version 1.0.0
 
-date: 2023-04-06T18:29:50+0200<br>
+date: 2023-04-06T18:30:33+0200<br>
 [![Actions Status](https://github.com/coderofsalvation/xrfragment/workflows/test/badge.svg)](https://github.com/coderofsalvation/xrfragment/actions)
 
 # XRFragment Grammar 
@@ -18,12 +18,13 @@ date: 2023-04-06T18:29:50+0200<br>
 
 > Example: `://foo.com/my3d.asset#pos=1,0,0&prio=-5&t=0,100|100,200`
 
-Hasslefree 3D vector-data (`,`), multi-protocol/fallback-linking & dynamic values (`|`), and CSS-piggybacking (`.mygroup`) 
-<br>
+<br>Explanation:<br>
 | `x=1,2,3` | vector/coordinate argument e.g. |
 | `x=foo\|bar\|1\,2,3\|1.0` | the `\|` character is used for:<br>1.specifying `n` arguments for xrfragment `x`<br>2. fallback urls (`src=https://x.co/f.gltf\|xyz://f.gltf`)<br>3. roundrobin of values (in case provided arguments exceeds `n` of `x` for #1) when triggered by browser URI (clicking `href` e.g.)|
 | `.mygroup` | query-alias for `class:mygroup` |
 
+> Focus: hasslefree 3D vector-data (`,`), multi-protocol/fallback-linking & dynamic values (`|`), and CSS-piggybacking (`.mygroup`) 
+
 # URI parser
 > icanhazcode? yes, see [URI.hx](https://github.com/coderofsalvation/xrfragment/blob/main/src/xrfragment/URI.hx)
 
diff --git a/src/xrfragment/URI.hx b/src/xrfragment/URI.hx
index b2cb63e..2bd01ca 100644
--- a/src/xrfragment/URI.hx
+++ b/src/xrfragment/URI.hx
@@ -22,12 +22,13 @@ import xrfragment.Parser;
  *
  * > Example: `://foo.com/my3d.asset#pos=1,0,0&prio=-5&t=0,100|100,200`
  *
- * Hasslefree 3D vector-data (`,`), multi-protocol/fallback-linking & dynamic values (`|`), and CSS-piggybacking (`.mygroup`) 
- * <br>
+ * <br>Explanation:<br>
  * | `x=1,2,3` | vector/coordinate argument e.g. |
  * | `x=foo\|bar\|1\,2,3\|1.0` | the `\|` character is used for:<br>1.specifying `n` arguments for xrfragment `x`<br>2. fallback urls (`src=https://x.co/f.gltf\|xyz://f.gltf`)<br>3. roundrobin of values (in case provided arguments exceeds `n` of `x` for #1) when triggered by browser URI (clicking `href` e.g.)|
  * | `.mygroup` | query-alias for `class:mygroup` |
  *
+ * > Focus: hasslefree 3D vector-data (`,`), multi-protocol/fallback-linking & dynamic values (`|`), and CSS-piggybacking (`.mygroup`) 
+ *
  * # URI parser
  * > icanhazcode? yes, see [URI.hx](https://github.com/coderofsalvation/xrfragment/blob/main/src/xrfragment/URI.hx)
  */