add links

diff --git a/openpower/sv/bitmanip.mdwn b/openpower/sv/bitmanip.mdwn
index 0e3de5985519f93b13859f162d03dc932c663132..3519fcf6f44b6a6b7d17b2254834917142448d56 100644 (file)
--- a/openpower/sv/bitmanip.mdwn
+++ b/openpower/sv/bitmanip.mdwn
@@ -514,11 +514,11 @@ uint64_t gorc64(uint64_t RA, uint64_t RB)
 
 # Galois Field 2^M
 
-see <https://courses.csail.mit.edu/6.857/2016/files/ffield.py>
-
-
-https://engineering.purdue.edu/kak/compsec/NewLectures/Lecture7.pdf
+see:
 
+* <https://courses.csail.mit.edu/6.857/2016/files/ffield.py>
+* <https://engineering.purdue.edu/kak/compsec/NewLectures/Lecture7.pdf>
+* <https://foss.heptapod.net/math/libgf2/-/blob/branch/default/src/libgf2/gf2.py>
 
 ## SPRs to set modulo and degree