Remove full stops at end of links in nccl_env_vars

Author: msimberg

docs/software/communication/nccl_env_vars

@@ -2,12 +2,12 @@
 # Slingshot network. If the plugin can not be found, applications will fail to
 # start. With the default value, applications would instead fall back to e.g.
 # TCP, which would be significantly slower than with the plugin. More information
-# about `NCCL_NET` can be found at
-# https://docs.nvidia.com/deeplearning/nccl/user-guide/docs/env.html#nccl-net.
+# about `NCCL_NET` can be found at:
+# https://docs.nvidia.com/deeplearning/nccl/user-guide/docs/env.html#nccl-net
 export NCCL_NET="AWS Libfabric"
 # Use GPU Direct RDMA when GPU and NIC are on the same NUMA node. More
-# information about `NCCL_NET_GDR_LEVEL` can be found at
-# https://docs.nvidia.com/deeplearning/nccl/user-guide/docs/env.html#nccl-net-gdr-level-formerly-nccl-ib-gdr-level.
+# information about `NCCL_NET_GDR_LEVEL` can be found at:
+# https://docs.nvidia.com/deeplearning/nccl/user-guide/docs/env.html#nccl-net-gdr-level-formerly-nccl-ib-gdr-level
 export NCCL_NET_GDR_LEVEL=PHB
 export NCCL_CROSS_NIC=1
 # These `FI` (libfabric) environment variables have been found to give the best