diff --git a/book/src/SUMMARY.md b/book/src/SUMMARY.md
index 0c25dab951..721978f917 100644
--- a/book/src/SUMMARY.md
+++ b/book/src/SUMMARY.md
@@ -12,6 +12,7 @@
 * [Local Testnets](./local-testnets.md)
 * [API](./api.md)
 	* [HTTP (RESTful JSON)](./http.md)
+	    * [/node](./http/node.md)
 	    * [/beacon](./http/beacon.md)
 	    * [/validator](./http/validator.md)
 	    * [/consensus](./http/consensus.md)
diff --git a/book/src/http/node.md b/book/src/http/node.md
index 801ec7d0e8..ae370cbe98 100644
--- a/book/src/http/node.md
+++ b/book/src/http/node.md
@@ -8,6 +8,7 @@ HTTP Path | Description |
 | --- | -- |
 [`/node/version`](#nodeversion) | Get the node's version.
 [`/node/syncing`](#nodesyncing) | Get the node's syncing status.
+[`/node/health`](#nodehealth)   | Get the node's health.
 
 ## `/node/version`
 
diff --git a/book/src/http_advanced.md b/book/src/http_advanced.md
deleted file mode 100644
index 5dad7cab67..0000000000
--- a/book/src/http_advanced.md
+++ /dev/null
@@ -1 +0,0 @@
-# /advanced
diff --git a/book/src/http_beacon.md b/book/src/http_beacon.md
deleted file mode 100644
index dd0313133d..0000000000
--- a/book/src/http_beacon.md
+++ /dev/null
@@ -1 +0,0 @@
-# /beacon
diff --git a/book/src/http_consensus.md b/book/src/http_consensus.md
deleted file mode 100644
index 2d8b80aa12..0000000000
--- a/book/src/http_consensus.md
+++ /dev/null
@@ -1 +0,0 @@
-# /consensus
diff --git a/book/src/http_network.md b/book/src/http_network.md
deleted file mode 100644
index e224ebc3a5..0000000000
--- a/book/src/http_network.md
+++ /dev/null
@@ -1 +0,0 @@
-# /network
diff --git a/book/src/http_spec.md b/book/src/http_spec.md
deleted file mode 100644
index dc94c2005b..0000000000
--- a/book/src/http_spec.md
+++ /dev/null
@@ -1 +0,0 @@
-# /spec
diff --git a/book/src/http_validator.md b/book/src/http_validator.md
deleted file mode 100644
index 29c0bac2e7..0000000000
--- a/book/src/http_validator.md
+++ /dev/null
@@ -1 +0,0 @@
-# /validator
diff --git a/book/src/key-managment.md b/book/src/key-managment.md
index e38e61be4b..ea06b8bc97 100644
--- a/book/src/key-managment.md
+++ b/book/src/key-managment.md
@@ -37,12 +37,12 @@ keypairs. Creating a single validator looks like this:
 1. Create a **wallet** and record the **mnemonic**:
     - `lighthouse account wallet create --name wally --passphrase-file wally.pass`
 1. Create the voting and withdrawal **keystores** for one validator:
-	- `lighthouse account validator create --wallet-name wally --wallet-passphrase wally.pass`
+	- `lighthouse account validator create --wallet-name wally --wallet-passphrase wally.pass --count 1`
 
 
 In step (1), we created a wallet in `~/.lighthouse/wallets` with the name
 `mywallet`. We encrypted this using a pre-defined password in the
-`mywallet.pass` file. Then, in step (2), we created a new validator in the
+`mywallet.pass` file. Then, in step (2), we created one new validator in the
 `~/.lighthouse/validators` directory using `mywallet` (unlocking it with
 `mywallet.pass`) and storing the passwords to the validators voting key in
 `~/.lighthouse/secrets`.
diff --git a/book/src/validator-create.md b/book/src/validator-create.md
index 683c9b1d73..17f2326acd 100644
--- a/book/src/validator-create.md
+++ b/book/src/validator-create.md
@@ -1,14 +1,14 @@
 # Create a validator
 
 Validators are fundamentally represented by a BLS keypair. In Lighthouse, we
-use a [wallet](./wallet-create) to generate these keypairs. Once a wallet
+use a [wallet](./wallet-create.md) to generate these keypairs. Once a wallet
 exists, the `lighthouse account validator create` command is used to generate
 the BLS keypair and all necessary information to submit a validator deposit and
 have that validator operate in the `lighthouse validator_client`.
 
 ## Usage
 
-To create a validator from a [wallet](./wallet-create), use the `lighthouse
+To create a validator from a [wallet](./wallet-create.md), use the `lighthouse
 account validator create` command:
 
 ```bash
@@ -57,7 +57,7 @@ OPTIONS:
 ## Example
 
 The example assumes that the `wally` wallet was generated from the
-[wallet](./wallet-create) example.
+[wallet](./wallet-create.md) example.
 
 ```bash
 lighthouse account wallet validator --name wally --wallet-password wally.pass