feat: updating docs for gremlin capabilities

README.md

@@ -29,6 +29,7 @@ Configuration is via a `.sasjslint` file with the following structure (these are
   "lowerCaseFileNames": true,
   "maxLineLength": 80,
   "noNestedMacros": true,
+  "noGremlins": true,
   "noSpacesInFileNames": true,
   "noTabs": true,
   "noTrailingSpaces": true,
@@ -125,6 +126,15 @@ We strongly recommend a line length limit, and set the bar at 80. To turn this f
 - Default: 80
 - Severity: WARNING
 
+### noGremlins
+
+Capture zero-width whitespace and other non-standard characters.  The logic is borrowed from the [VSCode Gremlins Extension](https://github.com/nhoizey/vscode-gremlins) - if you are looking for more advanced gremlin zapping capabilities, we highly recommend to use their extension instead.
+
+The list of characters can be found in this file: [https://github.com/sasjs/lint/blob/main/src/rules/line/noGremlins.ts](https://github.com/sasjs/lint/blob/main/src/rules/line/noGremlins.ts)
+
+- Default: true
+- Severity: WARNING
+
 ### noNestedMacros
 
 Where macros are defined inside other macros, they are recompiled every time the outer macro is invoked. Hence, it is widely considered inefficient, and bad practice, to nest macro definitions.