fix doc tests

crates/syntax/src/algo.rs

@@ -25,7 +25,7 @@ pub fn ancestors_at_offset(
 /// imprecise: if the cursor is strictly between two nodes of the desired type,
 /// as in
 ///
-/// ```no_run
+/// ```ignore
 /// struct Foo {}|struct Bar;
 /// ```
 ///

crates/syntax/src/ast/edit.rs

@@ -72,9 +72,9 @@ impl IndentLevel {
     }
 
     /// XXX: this intentionally doesn't change the indent of the very first token.
-    /// Ie, in something like
+    /// For example, in something like:
     /// ```
-    /// fn foo() {
+    /// fn foo() -> i32 {
     ///    92
     /// }
     /// ```