example 'cl-repl': add help, screenshot; several revisions

examples/cl-repl/qml/ext/Help.qml

@@ -0,0 +1,43 @@
+import QtQuick 2.15
+import "." as Ext
+
+Rectangle {
+  color: "lightyellow"
+
+  Column {
+    anchors.fill: parent
+
+    Ext.MenuBack {
+      label: "Help"
+    }
+
+    Ext.Flickable {
+      id: flick
+      width: parent.width
+      height: parent.height
+      contentWidth: help.paintedWidth
+      contentHeight: help.paintedHeight + 75
+
+      Text {
+        id: help
+        width: flick.width
+        height: flick.height
+        padding: 20
+        wrapMode: Text.WordWrap
+        font.pixelSize: 20
+        text:
+        "<h2>Help</h2>
+           <ul>
+           <p><b>:?</b> find regular expression, e.g. <b>:?&nbsp;prin[c1]</b></p>
+           <p><b>*</b> copy result to clipboard</p>
+           <p><b>:s</b> start swank server</p>
+           <p><b>:c</b> clear all output</p>
+           <p><b>:k</b> kill eval thread (long running task)</p>
+           <p><b>double [Space]</b> auto completion, e.g. <b>m-v-b</b></p>
+           <p><b>tap and hold</b> in the editor to select/copy/paste/eval s-expression, e.g. on <b>defun</b></p>
+           <p><b>tap and hold</b> cursor buttons to move to beginning/end of line/file</p>
+        </ul>"
+      }
+    }
+  }
+}