Documentation: Sandybridge RAM init: Fix links for Sphinx/recommonmark

Add a dash before the links to other files to mark those files as
subpages, and avoid the following error:

  reading sources... [ 33%] Intel/NativeRaminit/Sandybridge
  Exception occurred:
    File "/usr/lib/python2.7/dist-packages/recommonmark/states.py", line 134, in run_role
      content=content)
  TypeError: 'NoneType' object is not callable

While at it, also spell these filenames correctly: Only
SandyBridge_registers.md is spelled in camel-case.

Change-Id: If92be7d2b61229d0315e1cc5204e951171612fee
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/25786
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/Documentation/Intel/NativeRaminit/Sandybridge.md b/Documentation/Intel/NativeRaminit/Sandybridge.md
index b27ce9330c..8203106c07 100644
--- a/Documentation/Intel/NativeRaminit/Sandybridge.md
+++ b/Documentation/Intel/NativeRaminit/Sandybridge.md
@@ -30,13 +30,13 @@ The memory initialization code has to take care of lots of duties:
 | XMP     | Extreme Memory Profiles                                           | -          | -            |
 
 ## (Inoffical) register documentation
-[Sandy Bride - Register documentation](SandyBridge_registers.md)
+- [Sandy Bride - Register documentation](SandyBridge_registers.md)
 
 ## Frequency selection
-[Sandy Bride - Frequency selection](SandyBridge_freq.md)
+- [Sandy Bride - Frequency selection](Sandybridge_freq.md)
 
 ## Read training
-[Sandy Bride - Read training](SandyBridge_read.md)
+- [Sandy Bride - Read training](Sandybridge_read.md)
 
 ### SMBIOS type 17
 The SMBIOS specification allows to report the memory configuration in use.