update docs

docs/cluster_mgmt_with_sat_file.md

@@ -59,14 +59,14 @@ session_templates:
 
 ### jinja2 template engine
 
-While sat bootprep templating seems very simple, manta uses a jinja2 template engine.
+While sat bootprep templating seems very simple, manta follows ansible approach and uses a jinja2 template engine.
 
 ???+ warning "Using `-` in variable names is not recommended"
       A common mistake when dealing with jinja2 files is using `-` in variable names. This won't work since jinja will expand this as a math operator, to avoid this issue, try to use `_` instead.
 
       eg:
 
-      When a jinja template engine sees this `{{ template-version }}` it will try to resolve template and version as 2 independent variables (variable `template` and variable `version`) and substrace them means. If those variables don't exists in the sessions var, then they will become `undefined` and the jinja template engine will try to substract the 2 undefined values `undefined - undefine`, then, the operation will fail. This however would work if the session vars contains:
+      When a jinja template engine sees this `{{ template-version }}` it will try to resolve `template-version` as a mathematical expression (substract) of 2 variables (variable `template` and variable `version`). If those variables don't exists in the sessions var, then they will become `undefined` and the jinja template engine will try to substract the 2 undefined values `undefined - undefine`, then, the operation will fail. This however would work if the session vars contains:
 
       ```bash
       $ cat my_sat_vars.yml
@@ -94,7 +94,7 @@ configurations:
       tag: v0.1.0
 
 session_templates:
-- name: "my_template_{{ template-version }}" # Won't work. Error when resolving `session-version` because `-` is a math operator. Don't use `-` in variable names
+- name: "my-template-{{ template-version }}" # Won't work. Error when resolving `session-version` because `-` is a math operator. Don't use `-` in variable names
   ims:
     id: dbc5300c-3c98-4384-a7a7-28e628cbff43
   configuration: "runtime_my_config_mc"
@@ -127,7 +127,7 @@ called `Result::unwrap()` on an `Err` value: Error { kind: InvalidOperation, det
   10 |       tag: {{test_layer.tag}}
   11 |
   12 | session_templates:
-  13 > - name: "my_template_{{ template-version }}" # Won't work. Error when resolving `session-version` because `-` is a math operator. Don't use `-` in variable names
+  13 > - name: "my-template-{{ template-version }}" # Won't work. Error when resolving `session-version` because `-` is a math operator. Don't use `-` in variable names
      i                         ^^^^^^^^^^^^^^^^ invalid operation
   14 |   ims:
   15 |     id: dbc5300c-3c98-4384-a7a7-28e628cbff43