Fix devskim configuration documentation (#4129)

Co-authored-by: Sam M <sam.m@saluscyber.com>

Author: girlpunk

CHANGELOG.md

@@ -157,6 +157,7 @@ Note: Can be used with `oxsecurity/megalinter@beta` in your GitHub Action mega-l
   - Fix Grafana Home Dashboard to add missing criteria
   - Update PRE_COMMANDS documentation to describe all properties
   - Update Grafana documentation to fix secrets typo
+  - Update Devskim documentation to show a valid exclusion config file
 
 - CI
   - Free space in release job to avoid no space left on device, by @nvuillam in <https://github.com/oxsecurity/megalinter/pull/3914>

docs/descriptors/repository_devskim.md

@@ -13,7 +13,7 @@ Example:
 
 ```json
 {
-  Glob: [
+  "Globs": [
     "**/.git/**",
     "**/megalinter-reports/**"
   ]

megalinter/descriptors/repository.megalinter-descriptor.yml

@@ -68,7 +68,7 @@ linters:
 
       ```json
       {
-        Glob: [
+        "Globs": [
           "**/.git/**",
           "**/megalinter-reports/**"
         ]