Edit README

Author: shellyln

README.md

@@ -47,6 +47,16 @@ func main() {
 }
 ```
 
+## 🚧 TODO
+* Unit tests
+* `GROUP BY ROLLUP` and `GROUP BY CUBE` clause, `GROUPING()` function
+* `WITH` clause
+* `USING SCOPE` clause
+* Formula in fieldExpression at conditionExpression (where / having)
+* Polymorphic Fields
+* "null Values in Lookup Relationships and Outer Joins" - If an object has a conditional expression whose right hand side is null, it is not a condition for inner join.
+    * cf. "Using Relationship Queries" - If the condition is complete within the parent object (no "or" across relationships), it is inner joined.
+
 ## ⚖️ License
 
 MIT