fixing typo in re_types_builder doc

crates/re_types/source_hash.txt

@@ -1,4 +1,4 @@
 # This is a sha256 hash for all direct and indirect dependencies of this crate's build script.
 # It can be safely removed at anytime to force the build script to run again.
 # Check out build.rs to see how it's computed.
-5a4275f71245bf3f59421a959cf6b2f57e7d28c7dbec9a61e7416747c2d79b96
+7144304fc34dcef2beba2b7d4ba42c9871a1cf398e0311dc61cf0023961963fc

crates/re_types_builder/src/lib.rs

@@ -15,21 +15,21 @@
 //!
 //! Look for `compile_binary_schemas` in the code.
 //!
-//! ####. 2. Run the semantic pass.
+//! #### 2. Run the semantic pass.
 //!
 //! The semantic pass transforms the low-level raw reflection data generated by the first phase
 //! into higher level objects that are much easier to inspect/manipulate and overall friendler
 //! to work with.
 //!
 //! Look for `objects.rs`.
 //!
-//! ####. 3. Fill the Arrow registry.
+//! #### 3. Fill the Arrow registry.
 //!
 //! The Arrow registry keeps track of all type definitions and maps them to Arrow datatypes.
 //!
 //! Look for `arrow_registry.rs`.
 //!
-//! ####. 4. Run the actual codegen pass for a given language.
+//! #### 4. Run the actual codegen pass for a given language.
 //!
 //! We currently have two different codegen passes implemented at the moment: Python & Rust.
 //!