Update overview SDL for modern syntax (#913)

docs/index.rst

@@ -112,14 +112,14 @@ of the ``Movie`` type exclusive. This will help with filtering by
 
   module default {
     type Movie {
-      required property title -> str {
+      required title: str {
         constraint exclusive;
       };
-      multi link actors -> Person;
+      multi actors: Person;
     }
 
     type Person {
-      required property name -> str;
+      required name: str;
     }
   }
 

docs/interfaces.rst

@@ -37,15 +37,15 @@ Assume your database contains the following EdgeDB schema.
 
   module default {
     type Person {
-      required property name -> str;
+      required name: str;
     }
 
     scalar type Genre extending enum<Horror, Comedy, Drama>;
 
     type Movie {
-      required property title -> str;
-      property genre -> Genre;
-      multi link actors -> Person;
+      required title: str;
+      genre: Genre;
+      multi actors: Person;
     }
   }
 

docs/objects.rst

@@ -10,22 +10,24 @@ All queries on this page assume the following schema.
 
   module default {
     type Person {
-      required property name -> str;
+      required name: str;
     }
 
     abstract type Content {
-      required property title -> str {constraint exclusive};
-      multi link actors -> Person {
-        property character_name -> str;
+      required title: str {
+        constraint exclusive
+      };
+      multi actors: Person {
+        character_name: str;
       };
     }
 
     type Movie extending Content {
-      property release_year -> int64;
+      release_year: int64;
     }
 
     type TVShow extending Content {
-      property num_seasons -> int64;
+      num_seasons: int64;
     }
   }