fix two minor doc errors

src/pystencils/backend/ast/iteration.py

@@ -10,7 +10,7 @@ def dfs_preorder(
 
     Args:
         node: The tree's root node
-        filter_pred: Filter predicate; a node is only returned to the caller if `yield_pred(node)` returns True
+        filter_pred: Filter predicate; a node is only returned to the caller if ``yield_pred(node)`` returns True
     """
     if filter_pred(node):
         yield node
@@ -26,7 +26,7 @@ def dfs_postorder(
 
     Args:
         node: The tree's root node
-        filter_pred: Filter predicate; a node is only returned to the caller if `yield_pred(node)` returns True
+        filter_pred: Filter predicate; a node is only returned to the caller if ``yield_pred(node)`` returns True
     """
     for c in node.children:
         yield from dfs_postorder(c, filter_pred)

src/pystencils/backend/ast/util.py

@@ -20,7 +20,7 @@ def failing_cast(target: type | tuple[type, ...], obj: Any) -> Any:
 
 class AstEqWrapper:
     """Wrapper around AST nodes that computes a hash from the AST's textual representation
-    and maps the `__eq__` method onto `structurally_equal`.
+    and maps the ``__eq__`` method onto `structurally_equal <PsAstNode.structurally_equal>`.
 
     Useful in dictionaries when the goal is to keep track of subtrees according to their
     structure, e.g. in elimination of constants or common subexpressions.