fixed documentation of rcm

rcm/docs/rules.md

@@ -26,7 +26,7 @@ attribute name | value(s)
 ---
 #### recommendation
 ```
-The CPU usage on some nodes is low, please request less cores or increase amount of processes
+The CPU usage on some nodes is low, please adjust the amount of requested resources or workload of the job
 ```
 #### attributes
 attribute name | value(s)
@@ -77,6 +77,7 @@ attribute name | value(s)
 [mem_usage_total](./attributes.md#mem_usage_total) | `LOW`
 [cpu_usage_total_max](./attributes.md#cpu_usage_total_max) | `LOW`
 [node_cpu_usage_min](./attributes.md#node_cpu_usage_min) | `LOW`
+[node_cpu_usage_max](./attributes.md#node_cpu_usage_max) | `LOW`
 
 ---
 #### recommendation
@@ -91,6 +92,7 @@ attribute name | value(s)
 [mem_usage_total](./attributes.md#mem_usage_total) | `NORM`
 [cpu_usage_total_max](./attributes.md#cpu_usage_total_max) | `LOW`
 [node_cpu_usage_min](./attributes.md#node_cpu_usage_min) | `LOW`
+[node_cpu_usage_max](./attributes.md#node_cpu_usage_max) | `LOW`
 
 ---
 #### recommendation

rcm/rules.py

@@ -16,7 +16,7 @@ RULES = [
             "cpu_usage_total_max": "LOW",
             "node_cpu_usage_min": "LOW",
             "node_cpu_usage_max": "NORM"},
-        "msg": "The CPU usage on some nodes is low, please request less cores or increase amount of processes"},
+        "msg": "The CPU usage on some nodes is low, please adjust the amount of requested resources or workload of the job"},
     {
         "attrs": {
             "job_nodes_amount": "MULT",