opt transforms the ast into an optimized ast (#10900)

* opt transforms the ast into an optimized ast

* fix get_kernel order and to_function_name

* function_name property

* update docs

* copy from kernel.py

* improve docs

* ci didn't trigger?

docs/developer/layout.md

@@ -1,6 +1,8 @@
 # tinygrad directory layout
 
-Listed in order of how they are processed
+This explains the flow of a big graph down to programs.
+
+Directories are listed in order of how they are processed.
 
 ---
 
@@ -20,7 +22,11 @@ Group UOps into kernels.
 
 Transforms the ast into an optimized ast. This is where BEAM search and heuristics live.
 
-When finished, this will just have a function that takes in the ast and returns the optimized ast.
+::: tinygrad.opt.get_optimized_ast
+    options:
+        members: false
+        show_labels: false
+        show_source: false
 
 ---
 
@@ -38,10 +44,23 @@ Transform the optimized ast into a linearized list of UOps.
 
 ## tinygrad/renderer
 
-Transform the linearized list of UOps into a program.
+Transform the linearized list of UOps into a program, represented as a string.
+
+::: tinygrad.renderer.Renderer
+    options:
+        members:
+            - render
+        show_labels: false
+        show_source: false
 
 ---
 
 ## tinygrad/engine
 
 Abstracted high level interface to the runtimes.
+
+::: tinygrad.engine.realize.get_program
+    options:
+        members: false
+        show_labels: false
+        show_source: false