More debug messages on repair; update notes

src/ocrmypdf/pdfinfo.py

@@ -728,7 +728,6 @@ class PdfInfo:
         else:
             self._toc = []
 
-
     @property
     def pages(self):
         return self._pages

src/ocrmypdf/pipeline.py

@@ -212,7 +212,10 @@ def repair_pdf(
         log,
         context):
     options = context.get_options()
+    log.debug("Beginning qpdf repair...")
     qpdf.repair(input_file, output_file, log)
+
+    log.debug("Repair OK; beginning parse...")
     pdfinfo = PdfInfo(output_file)
 
     if pdfinfo.has_userunit and options.output_type == 'pdfa':