[PATCH] docs: fix link to OpenPiton documentation

[hasheddan]

Updates link in platforms documentation to point to the correct
OpenPiton document.

Signed-off-by: hasheddan <georgedanielmangum at gmail.com>
---
 docs/platform/platform.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/platform/platform.md b/docs/platform/platform.md
index 7f47068..8ee8754 100644
--- a/docs/platform/platform.md
+++ b/docs/platform/platform.md
@@ -36,7 +36,7 @@ OpenSBI currently supports the following virtual and hardware platforms:
 
 * **OpenPiton FPGA SoC**: Platform support OpenPiton research platform based
   on ariane core. More details on this platform can be found in the file
-  *[fpga_openpiton.md]*.
+  *[fpga-openpiton.md]*.
 
 * **Shakti C-class SoC Platform**: Platform support for Shakti C-class
   processor based SOCs. More details on this platform can be found in the
@@ -55,5 +55,5 @@ facilitate the implementation.
 [andes-ae350.md]: andes-ae350.md
 [thead-c910.md]: thead-c910.md
 [spike.md]: spike.md
-[fpga_openpiton.md]: fpga_openpiton.md
+[fpga-openpiton.md]: fpga-openpiton.md
 [shakti_cclass.md]: shakti_cclass.md
-- 
2.25.1