Changed "8) Revisions for Quartus" into "8) Design revisions", because the...

Changed "8) Revisions for Quartus" into "8) Design revisions", because the scheme is independent of Quartus.
Added title "8) Design revisions" to the contents section.

tools/hdltool_readme.txt

@@ -30,8 +30,10 @@ Contents:
 7) Synthesis in Quartus
   a) Creating the Quartus project files
 
+8) Design revisions
   
 
+
 1) Introduction 
 
 This readme file describes the practical realisation of the prestudy ideas for the RadioHDL directory tree
@@ -429,7 +431,7 @@ The quartus_config.py creates the Quartus qpf, qsf and or qip files for a design
 
 
 
-8) Revisions for Quartus
+8) Design revisions
 
 Within a design, several revisions can be made: 
 Add a directory 'revisions/' in the design directory which contains a list of subdirectories. Each subdirectory is