Update resource_accounting.md

snippets/resource_accounting.md

 ## Resource Accounting Policy
 
-Starting with the 24<sup>th</sup> open access grant competition, the accounting policy has been changed from [normalized core hours (NCH)][2] to **node hours**. This means that it is now required to apply for node hours of the specific cluster and node type:
+Starting with the 24<sup>th</sup> open access grant competition, the accounting policy has been changed from [normalized core hours (NCH)][2a] to **node hours**. This means that it is now required to apply for node hours of the specific cluster and node type:
 
-1. [Barbora CPU][3]
-1. [Barbora GPU][4] 
-1. [Barbora FAT][5]
-1. [DGX-2][6]
-1. [Karolina CPU][7]
-1. [Karolina GPU][8]
-1. [Karolina FAT][9]
+1. [Barbora CPU][3a]
+1. [Barbora GPU][4a] 
+1. [Barbora FAT][5a]
+1. [DGX-2][6a]
+1. [Karolina CPU][7a]
+1. [Karolina GPU][8a]
+1. [Karolina FAT][9a]
 
 The accounting runs whenever the nodes are allocated via the PBS Pro workload manager (the qsub command), regardless of whether
 the nodes are actually used for any calculation.
@@ -44,7 +44,7 @@ The normalized core-hours were introduced to treat systems of different age on e
 Normalized core-hour is an accounting tool to discount the legacy systems. The past (before 2017-09-11) F factors are all 1.0.
 Factors F are expected to only decrease in time.
 
-See examples in the [Job submission and execution][1] section.
+See examples in the [Job submission and execution][1a] section.
 
 ### Consumed Resources
 
@@ -75,14 +75,14 @@ NCH   =    Normalized Core Hour
 
 The `it4ifree` command is a part of the `it4i.portal.clients` package, located [here][pypi].
 
-[1]: job-submission-and-execution.md
-[2]: #normalized-core-hours-nch
-[3]: ../../barbora/compute-nodes/#compute-nodes-without-accelerators
-[4]: ../../barbora/compute-nodes/#compute-nodes-with-a-gpu-accelerator
-[5]: ../../barbora/compute-nodes/#fat-compute-node
-[6]: ../../dgx2/introduction/
-[7]: ../../karolina/compute-nodes/#compute-nodes-without-accelerators
-[8]: ../../karolina/compute-nodes/#compute-nodes-with-a-gpu-accelerator
-[9]: ../../karolina/compute-nodes/#data-analytics-compute-node
+[1a]: job-submission-and-execution.md
+[2a]: #normalized-core-hours-nch
+[3a]: ../../barbora/compute-nodes/#compute-nodes-without-accelerators
+[4a]: ../../barbora/compute-nodes/#compute-nodes-with-a-gpu-accelerator
+[5a]: ../../barbora/compute-nodes/#fat-compute-node
+[6a]: ../../dgx2/introduction/
+[7a]: ../../karolina/compute-nodes/#compute-nodes-without-accelerators
+[8a]: ../../karolina/compute-nodes/#compute-nodes-with-a-gpu-accelerator
+[9a]: ../../karolina/compute-nodes/#data-analytics-compute-node
 
 [pypi]: https://pypi.python.org/pypi/it4i.portal.clients