readme updated

README

@@ -66,7 +66,7 @@ For x86_64:
   <buildroot>/x86_64-4.7.2-release-posix-sjlj-rev1/prefix
 
 And the sources directory:
-  <buildroot>/mingw-sources
+  <buildroot>/src
 
 
 The archives with the built MinGW will be created in '<buildroot>/archives/'
@@ -82,18 +82,29 @@ At the moment, successfully building the following versions:
   gcc-4.8.0
   gcc-4.8.1
   gcc-4.8.2
+  gcc-4.8.3
+  gcc-4.8.4
+  gcc-4.8.5
   gcc-4.9.0
   gcc-4.9.1
   gcc-4.9.2
   gcc-4.9.3
   gcc-5.1.0
   gcc-5.2.0
+  gcc-5.3.0
+  gcc-5.4.0
+  gcc-6.1.0
+  gcc-6.2.0
+  gcc-6.3.0
+  gcc-7.1.0
   gcc-4_6-branch (currently 4.6.5 prerelease)
   gcc-4_7-branch (currently 4.7.4 prerelease)
-  gcc-4_8-branch (currently 4.8.3 prerelease)
+  gcc-4_8-branch (currently 4.8.6 prerelease)
   gcc-4_9-branch (currently 4.9.4 prerelease)
-  gcc-5-branch (currently 5.3.0 prerelease)
-  gcc-trunk (currently 6.0.0 snapshot)
+  gcc-5-branch (currently 5.5.0 prerelease)
+  gcc-6-branch (currently 6.4.0 prerelease)
+  gcc-7-branch (currently 7.2.0 prerelease)
+  gcc-trunk (currently 8.0.0 snapshot)
 
 Builds also contains patches for building Python 2.7.9 and 3.4.3 versions for support gdb pretty printers.
 Big thanks for these patches to: