Update resource_allocation_and_job_execution.md

docs.it4i/general/resource_allocation_and_job_execution.md

@@ -2,12 +2,12 @@
     We migrated workload managers of all clusters (including Barbora and Karolina) **from PBS to Slurm**!
     For more information on how to submit jobs in Slurm, see the [Job Submission and Execution][5] section.
 
-# Resource Allocation
-
-To run a [job][1], computational resources for this particular job must be allocated. This is done via the [Slurm][a] job workload manager software, which distributes workloads across the supercomputer.
+# Introduction to running jobs
 
 ## Job Submission and Execution
 
+To run a [job][1], computational resources for this particular job must be allocated. This is done via the [Slurm][a] job workload manager software, which distributes workloads across the supercomputer.
+
 The `sbatch` or `salloc` command creates a request to the Slurm job manager for allocation of specified resources.
 The resources will be allocated when available, subject to allocation policies and constraints.
 **After the resources are allocated, the jobscript or interactive shell is executed on first of the allocated nodes.**