Update README.md. Add Variable docs.

README.md

@@ -50,6 +50,28 @@ Animal/Dog -> [Mammal, Domesticated] {
 }
 ```
 
+### Variables
+
+Variables are always Protected scoped. 
+There is no way to make them Public or Private. 
+This is by design.
+
+#### Variable Declaration
+
+##### Declare Now, Set later
+```waddle
+Integer num;
+
+fn on_create(Integer my_num) -> [None] {
+    my.num.set(my_num);
+}
+```
+
+##### Declare and Set at same time
+```waddle
+Integer num.set(1000);
+```
+
 ### Functions
 
 #### Function declaration
@@ -203,8 +225,7 @@ result = Boolean.and(
 #### Object Method Boolean Checks
 ```waddle
 if(my.age.gt(18).and(my.status.is(Verified))){
-    my.age.gt(18), 
+    // Pass check
-    my.status.is(Verified)
 }
 ```