fix numbering (#1819)

Summary:
Pull Request resolved: #1819

just fixes some numbering issues.

Reviewed By: thedavekwon

Differential Revision: D86762620

fbshipit-source-id: 0036fef3ad4cda009d6c3b9cb46c3b1744e705f8

Author: shayne-fletcher

docs/source/books/hyperactor-mesh-book/src/meshes/bootstrapping-doing-real-work.md

@@ -1,4 +1,4 @@
-# 4. Doing real work (hosts → procs → actors)
+#  §4 Doing real work (hosts → procs → actors)
 
 We can now line up the rest of `bootstrap_cannonical_simple` and see that the remaining calls are just "use the host we just created."
 
@@ -10,7 +10,7 @@ let host_mesh = HostMesh::allocate(&instance, Box::new(alloc), "test", None)
     .unwrap();
 ```
 
-was the part we just broke down in §1.4 — it consumed the allocation, talked to the children, ran the trampoline, and gave us a real `HostMesh`.
+was the part we just broke down in §3 — it consumed the allocation, talked to the children, ran the trampoline, and gave us a real `HostMesh`.
 
 The test immediately does two more things:
 

docs/source/books/hyperactor-mesh-book/src/meshes/bootstrapping-from-python.md

@@ -1,4 +1,4 @@
-# Boostrapping from Python
+# §5 Boostrapping from Python
 
 So far we described the Rust side: there is a host, the host has a `HostMeshAgent`, and we send `CreateOrUpdate<ProcSpec>` etc. That's the control plane.
 

docs/source/books/hyperactor-mesh-book/src/meshes/bootstrapping-hostmesh-from-allocation.md

@@ -1,4 +1,4 @@
-# 3. HostMesh from an allocation (what `HostMesh::allocate(...)` actually does)
+#  §3 HostMesh from an allocation (what `HostMesh::allocate(...)` actually does)
 
 At this point we already have:
 

docs/source/books/hyperactor-mesh-book/src/meshes/bootstrapping-proc-and-instance.md

@@ -1,4 +1,4 @@
-## 1. Proc and Instance (start from a Proc you control)
+##  §1 Proc and Instance (start from a Proc you control)
 
 We begin in a process that can already run hyperactor code and create an instance:
 

docs/source/books/hyperactor-mesh-book/src/meshes/bootstrapping-process-allocator.md

@@ -1,4 +1,4 @@
-# 2. Process allocator & v0 bootstrap (get something that can spawn processes)
+#  §2 Process allocator & v0 bootstrap (get something that can spawn processes)
 
 ## 2. Get something that can spawn processes