chore: add descriptive comment for FlexLayoutModule

Author: CaerusKaru

src/lib/module.ts

@@ -34,7 +34,10 @@ import {GridModule} from '@angular/flex-layout/grid';
  */
 
 /**
- *
+ * FlexLayoutModule -- the main import for all utilities in the Angular Layout library
+ * * Will automatically provide Flex, Grid, and Extended modules for use in the application
+ * * Can be configured using the static withConfig method, options viewable on the Uncyclo's
+ *   Configuration page
  */
 @NgModule({
   imports: [FlexModule, ExtendedModule, GridModule],