2 files changed, 11 insertions, 3 deletions
diff --git a/doc/context/sources/general/manuals/followingup/followingup-fonts.tex b/doc/context/sources/general/manuals/followingup/followingup-fonts.tex
index a4a16878f..728f9c0fa 100644
--- a/doc/context/sources/general/manuals/followingup/followingup-fonts.tex
+++ b/doc/context/sources/general/manuals/followingup/followingup-fonts.tex
@@ -332,9 +332,9 @@ manual we get these stats:
 \stoptyping
 
 So, we win on all fronts when we use this glyph scaling mechanism. The magic
-primitive that deals with this is named \type {\glyphscale}; it  accepts a
-number, where \type {1200} and \type {1.2} both mean scaling to 20\percent\ more
-than normal. But it's best not to use this primitive directly.
+primitive that deals with this is named \type {\glyphscale}; it accepts a number,
+where \type {1200} means scaling to 20\percent\ more than normal. But it's best
+not to use this primitive directly.
 
 A specific scaled font can be defined using the \type {\definefont} command. In
 \LMTX\ a regular scaler can be followed by two scale factors. The next example
diff --git a/doc/context/sources/general/manuals/lowlevel/lowlevel-inserts.tex b/doc/context/sources/general/manuals/lowlevel/lowlevel-inserts.tex
index 4976ce564..caf3198b9 100644
--- a/doc/context/sources/general/manuals/lowlevel/lowlevel-inserts.tex
+++ b/doc/context/sources/general/manuals/lowlevel/lowlevel-inserts.tex
@@ -193,6 +193,14 @@ processing.
 
 \stopsectionlevel
 
+\startsectionlevel[title=Synchronizing]
+
+The page builder can triggered by (for instance) a penalty but you can also use
+type {\pageboundary}. This will trigger the page builder but not leave anything
+behind. (This is experimental.)
+
+\stopsectionlevel
+
 \startsectionlevel[title=Callbacks]
 
 {\em Todo, nothing new there, so no hurry.}