Fix json schema example (#684)

* Standardize docstrings to define what the program does, add missing license wording, and format blank lines around header docstrings.

* Update schemas for typos

* Update mission_prevalence.py

* Update 'virulence' to 'automatable'
keys

---------

Co-authored-by: Allen D. Householder <ahouseholder@users.noreply.github.com>

Author: sei-renae

data/schema_examples/Computed-CVE-2014-0751-Coordinator-with-tree.json

@@ -2,7 +2,7 @@
   "role": "Coordinator",
   "id": "CVE-2014-0751",
   "version": "2.0.3",
-    "computed": "SSVCv2/E:A/V:S/T:T/P:M/B:A/M:M/D:A/2021-09-29T15:29:44Z/",
+    "computed": "SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2021-09-29T15:29:44Z/",
     "timestamp":  "2021-09-29T15:29:44Z",
   "options": [
     {
@@ -52,7 +52,7 @@
       },
       {
         "label": "Automatable",
-        "key": "V",
+        "key": "A",
         "decision_type": "simple",
         "options": [
           {

data/schema_examples/Computed-CVE-2014-0751-Coordinator.json

@@ -2,7 +2,7 @@
     "role": "Coordinator",
     "id": "CVE-2014-0751",
     "version": "2.0.3",
-    "computed": "SSVCv2/E:A/V:S/T:T/P:M/B:A/M:M/D:A/2021-09-29T15:29:44Z/",
+    "computed": "SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2021-09-29T15:29:44Z/",
     "timestamp": "2021-09-29T15:29:44Z",
     "options": [
 	{

src/ssvc/decision_points/mission_prevalence.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 """
-Provides the Mission Prevalence decision point and its values."
+Provides the Mission Prevalence decision point and its values.
 """
 
 #  Copyright (c) 2024-2025 Carnegie Mellon University and Contributors.

src/ssvc/decision_points/utility.py

@@ -5,7 +5,6 @@
 """
 
 #  Copyright (c) 2024-2025 Carnegie Mellon University and Contributors.
-#  - see Contributors.md for a full list of Contributors
 #  - see ContributionInstructions.md for information on how you can Contribute to this project
 #  Stakeholder Specific Vulnerability Categorization (SSVC) is
 #  licensed under a MIT (SEI)-style license, please see LICENSE.md distributed