Add README on how to generate docs (smithy-lang#471)

Co-authored-by: Nate Prewitt <[email protected]>

# Conflicts:
#	codegen/core/src/main/java/software/amazon/smithy/python/codegen/generators/SetupGenerator.java

Author: SamRemis

codegen/core/src/main/java/software/amazon/smithy/python/codegen/generators/SetupGenerator.java

@@ -118,6 +118,10 @@ private static void writePyproject(
         writers.useFileWriter("pyproject.toml", "", writer -> {
             writer.pushState(new PyprojectSection(dependencies));
             writer.write("""
+                    [build-system]
+                    requires = ["setuptools", "setuptools-scm", "wheel"]
+                    build-backend = "setuptools.build_meta"
+
                     [project]
                     name = $1S
                     version = $2S
@@ -141,7 +145,7 @@ private static void writePyproject(
                     """, settings.moduleName(), settings.moduleVersion(), settings.moduleDescription());
 
             Optional.ofNullable(dependencies.get(PythonDependency.Type.DEPENDENCY.getType())).ifPresent(deps -> {
-                writer.openBlock("dependencies = [", "]\n", () -> writeDependencyList(writer, deps.values()));
+                writer.openBlock("dependencies = [", "]", () -> writeDependencyList(writer, deps.values()));
             });
 
             Optional<Collection<SymbolDependency>> testDeps =
@@ -157,24 +161,17 @@ private static void writePyproject(
             }
 
             testDeps.ifPresent(deps -> {
-                writer.openBlock("tests = [", "]\n", () -> writeDependencyList(writer, deps));
+                writer.openBlock("tests = [", "]", () -> writeDependencyList(writer, deps));
             });
 
             docsDeps.ifPresent(deps -> {
-                writer.openBlock("docs = [", "]\n", () -> writeDependencyList(writer, deps));
+                writer.openBlock("docs = [", "]", () -> writeDependencyList(writer, deps));
             });
 
             // TODO: remove the pyright global suppressions after the serde redo is done
             writer.write("""
-                    [build-system]
-                    requires = ["hatchling"]
-                    build-backend = "hatchling.build"
-
-                    [tool.hatch.build.targets.bdist]
-                    exclude = [
-                      "tests",
-                      "docs",
-                    ]
+                    [tool.setuptools.packages.find]
+                    exclude=["tests*"]
 
                     [tool.pyright]
                     typeCheckingMode = "strict"
@@ -468,9 +465,9 @@ private static void writeDocsReadme(
                 following:
                 
                 ```
-                $ uv pip install ".[docs]"
-                $ cd docs
-                $ make html
+                $$ uv pip install ".[docs]"
+                $$ cd docs
+                $$ make html
                 ```
                     """);
         });