Temporary notes on PhonoSearch dialog

This lets the user know that phonological search does not work with segments that are only found in pronunciation variants.

corpustools/gui/psgui.py

@@ -669,7 +669,18 @@ def __init__(self, parent, settings, recents, saved, corpus, inventory, showTool
         self.pslayout.addWidget(filterFrame)
 
         self.psFrame.setLayout(self.pslayout)
+
+        psTempnote_Frame = QFrame()
+        notelayout = QVBoxLayout()
+        psTempnote_Frame.setLayout(notelayout)
+        temp_note = QLabel(text=('* Currently, PCT cannot search for symbols that are only found in '
+                                 'pronunciation variants.\n* Even if you can select one in the inventory table,'
+                                 ' searching for a variant-only segment returns 0.\n'
+                                 '* "Syllable search" and "Syllable number filters" only work on a syllabified corpus'))
+        temp_note.setFont(QFont('Arial', 11))
+        notelayout.addWidget(temp_note)
         self.layout().insertWidget(0, self.psFrame)
+        self.layout().insertWidget(1, psTempnote_Frame)
 
         self.progressDialog.setWindowTitle('Searching')