Update guide.md

[MontgomeryWatts]

Update example for strictQuery to indicate it will not remove fields not in schema when set to false.

Summary

The documentation currently states setting strictQuery to false will strip out fields in the filter that are not part of the Schema. This is the opposite of what setting strictQuery to false does.

Examples

const mySchema = new Schema({ field: Number }, {
  strict: true,
  strictQuery: true
});
const MyModel = mongoose.model('Test', mySchema);
// Mongoose will strip out `notInSchema: 1` because `strictQuery` is true
MyModel.find({ notInSchema: 1 });

const mySchema = new Schema({ field: Number }, {
  strict: true,
  strictQuery: false // Turn off strict mode for query filters
});
const MyModel = mongoose.model('Test', mySchema);
// Mongoose will not strip out `notInSchema: 1` because `strictQuery` is false
MyModel.find({ notInSchema: 1 });

[vkarpov15]

Thanks 👍