3 files changed, 11 insertions, 2 deletions
diff --git a/system/doc/system_principles/create_target.xmlsrc b/system/doc/system_principles/create_target.xmlsrc
index 47b84e5760..ea0d938936 100644
--- a/system/doc/system_principles/create_target.xmlsrc
+++ b/system/doc/system_principles/create_target.xmlsrc
@@ -352,7 +352,7 @@ fi
 START_ERL_DATA=${1:-$RELDIR/start_erl.data}
 
 $ROOTDIR/bin/run_erl -daemon /tmp/ $ROOTDIR/log "exec $ROOTDIR/bin/start_erl $ROOTDIR\
-$RELDIR $START_ERL_DATA -heart</code>
+$RELDIR $START_ERL_DATA -heart"</code>
     <p>We use the simplest possible <c>sys.config</c>, which we
       store in <c>releases/FIRST</c>:</p>
     <code type="none">
diff --git a/system/doc/system_principles/misc.xml b/system/doc/system_principles/misc.xml
index dd6c2a1336..ed3675d180 100644
--- a/system/doc/system_principles/misc.xml
+++ b/system/doc/system_principles/misc.xml
@@ -34,6 +34,14 @@
   </header>
 
   <section>
+    <title>Introduction</title>
+    <p>This document describes strategy regarding supported Releases,
+    compatibility, deprecations and removal of functionality. This
+    document was introduced in OTP 21. Actions taken regarding these
+    issues before OTP 21 did not adhere this document.</p>
+  </section>
+
+  <section>
     <marker id="supported_releases"/>
     <title>Supported Releases</title>
     <p>
diff --git a/system/doc/system_principles/system_principles.xml b/system/doc/system_principles/system_principles.xml
index 500522d778..6986d93ed9 100644
--- a/system/doc/system_principles/system_principles.xml
+++ b/system/doc/system_principles/system_principles.xml
@@ -156,7 +156,8 @@ init:stop()</pre>
       command-line flag <c>-mode</c>.</p>
     <pre>
 % <input>erl -mode embedded</input></pre>
-    <p>Default mode is <c>interactive</c>.</p>
+    <p>Default mode is <c>interactive</c> and extra <c>-mode</c> flags are
+      ignored.</p>
     <p>The mode properties are as follows:</p>
     <list type="bulleted">
       <item>In embedded mode, all code is loaded during system startup