Fix some typos in README

README.md

@@ -15,34 +15,34 @@ See [LICENSE.md](LICENSE.md) for details.
 * [Installing](#installing)
 * [Structure of the library](#structure-of-the-library)
 * [Tutorial](#tutorial)
-  * [A basic echo service](#a-basic-echo-service)
-  * [Passing capabilities](#passing-capabilities)
-  * [Networking](#networking)
-    * [The server side](#the-server-side)
-    * [The client side](#the-client-side)
-    * [Separate processes](#separate-processes)
+    * [A basic echo service](#a-basic-echo-service)
+    * [Passing capabilities](#passing-capabilities)
+    * [Networking](#networking)
+        * [The server side](#the-server-side)
+        * [The client side](#the-client-side)
+        * [Separate processes](#separate-processes)
 * [Pipelining](#pipelining)
 * [Guide to sturdy refs](#guide-to-sturdy-refs)
-  * [Hosting multiple sturdy refs](#hosting-multiple-sturdy-refs)
-  * [Creating services dynamically](#creating-services-dynamically)
-  * [The Persistence API](#the-persistence-api)
-  * [Persisting sturdy refs](#persisting-sturdy-refs)
+    * [Hosting multiple sturdy refs](#hosting-multiple-sturdy-refs)
+    * [Creating services dynamically](#creating-services-dynamically)
+    * [The Persistence API](#the-persistence-api)
+    * [Persisting sturdy refs](#persisting-sturdy-refs)
 * [Further reading](#further-reading)
 * [FAQ](#faq)
-  * [Why does my connection stop working after 10 minutes?](#why-does-my-connection-stop-working-after-10-minutes)
-  * [How can I return multiple results?](#how-can-i-return-multiple-results)
-  * [Can I create multiple instances of an interface dynamically?](#can-i-create-multiple-instances-of-an-interface-dynamically)
-  * [Can I get debug output?](#can-i-get-debug-output)
-  * [How can I debug reference counting problems?](#how-can-i-debug-reference-counting-problems)
-  * [How can I import a sturdy ref that I need to start my vat?](#how-can-i-import-a-sturdy-ref-that-i-need-to-start-my-vat)
-  * [How can I release other resources when my service is released?](#how-can-i-release-other-resources-when-my-service-is-released)
-  * [Is there an interactive version I can use for debugging?](#is-there-an-interactive-version-i-can-use-for-debugging)
-  * [Can I set up a direct 2-party connection over a pre-existing channel?](#can-i-set-up-a-direct-2-party-connection-over-a-pre-existing-channel)
+    * [Why does my connection stop working after 10 minutes?](#why-does-my-connection-stop-working-after-10-minutes)
+    * [How can I return multiple results?](#how-can-i-return-multiple-results)
+    * [Can I create multiple instances of an interface dynamically?](#can-i-create-multiple-instances-of-an-interface-dynamically)
+    * [Can I get debug output?](#can-i-get-debug-output)
+    * [How can I debug reference counting problems?](#how-can-i-debug-reference-counting-problems)
+    * [How can I import a sturdy ref that I need to start my vat?](#how-can-i-import-a-sturdy-ref-that-i-need-to-start-my-vat)
+    * [How can I release other resources when my service is released?](#how-can-i-release-other-resources-when-my-service-is-released)
+    * [Is there an interactive version I can use for debugging?](#is-there-an-interactive-version-i-can-use-for-debugging)
+    * [Can I set up a direct 2-party connection over a pre-existing channel?](#can-i-set-up-a-direct-2-party-connection-over-a-pre-existing-channel)
 * [Contributing](#contributing)
-  * [Conceptual model](#conceptual-model)
-  * [Building](#building)
-  * [Testing](#testing)
-  * [Fuzzing](#fuzzing)
+    * [Conceptual model](#conceptual-model)
+    * [Building](#building)
+    * [Testing](#testing)
+    * [Fuzzing](#fuzzing)
 
 <!-- vim-markdown-toc -->
 
@@ -358,7 +358,7 @@ let heartbeat t msg callback =
 ```
 
 `Capability.call_for_unit_exn` is a convenience wrapper around
-`Callback.call_for_value_exn` that discards the result.
+`Capability.call_for_value_exn` that discards the result.
 
 In `main.ml`, we can now wrap a regular OCaml function as the callback:
 
@@ -476,7 +476,7 @@ let () =
   <img src="./diagrams/vats.svg"/>
 </p>
 
-You'll need to edit your `dune` file to add a dependencies
+You'll need to edit your `dune` file to add dependencies
 on `capnp-rpc-unix` and `mirage-crypto-rng-eio` in the `(libraries ...` line and also:
 
 <!-- $MDX skip -->