Docs: Fix capitalization in links

docs/guide/address.md

@@ -6,14 +6,14 @@ Represents a bitcoin Address. Addresses are the most popular way to make bitcoin
 
 ## Instantiate an Address
 
-To be able to receive bitcoins an address is needed, but in order to spend them a private key is necessary. Please take a look at the [`PrivateKey`](PrivateKey.md) docs for more information about exporting and saving a key.  
+To be able to receive bitcoins an address is needed, but in order to spend them a private key is necessary. Please take a look at the [`PrivateKey`](privatekey.md) docs for more information about exporting and saving a key.  
 
 ```javascript
 var privateKey = new PrivateKey();
 var address = privateKey.toAddress();
 ```
 
-You can also instantiate an Address from a String, [PublicKey](PublicKey.md), or [HDPublicKey](Hierarchical.md), in case you are not the owner of the private key.
+You can also instantiate an Address from a String, [PublicKey](publickey.md), or [HDPublicKey](hierarchical.md), in case you are not the owner of the private key.
 
 ```javascript
 // from a string

docs/guide/block.md

@@ -47,7 +47,7 @@ For more information about the specific properties of a block header please visi
 
 ## Transactions
 
-The set of transactions in a block is an array of instances of [Transaction](Transaction.md) and can be explored by iterating on the block's `transactions` member.
+The set of transactions in a block is an array of instances of [Transaction](transaction.md) and can be explored by iterating on the block's `transactions` member.
 
 ```javascript
 for (var i in block.txs) {

docs/guide/hierarchical.md

@@ -6,7 +6,7 @@ Bitcore provides full support for [BIP32](https://github.com/bitcoin/bips/blob/m
 
 ## HDPrivateKey
 
-An instance of a [PrivateKey](PrivateKey.md) that also contains information required to derive child keys.
+An instance of a [PrivateKey](privatekey.md) that also contains information required to derive child keys.
 
 Sample usage:
 

docs/guide/pool.md

@@ -2,7 +2,7 @@
 
 ## Pool
 
-A pool maintains a connection of [Peers](Peer.md). A pool will discover peers via DNS seeds, as well as when peer addresses are announced through the network.
+A pool maintains a connection of [Peers](peer.md). A pool will discover peers via DNS seeds, as well as when peer addresses are announced through the network.
 
 The quickest way to get connected is to run the following:
 
@@ -27,4 +27,4 @@ pool.disconnect()
 
 ```
 
-For more information about Peer events, please read the [Peer](Peer.md) documentation. Peer events are relayed to the pool, a peer event `inv` in the pool would be `peerinv`. When a peer is disconnected the pool will try to connect to the list of known addresses to maintain connection.
+For more information about Peer events, please read the [Peer](peer.md) documentation. Peer events are relayed to the pool, a peer event `inv` in the pool would be `peerinv`. When a peer is disconnected the pool will try to connect to the list of known addresses to maintain connection.

docs/guide/publickey.md

@@ -2,7 +2,7 @@
 
 ## Description
 
-Represents a bitcoin public key and is needed to be able to receive bitcoin, as is usually represented as a bitcoin [Address](Address.md), see the official [Bitcoin Wiki](https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses). A PublicKey in Bitcore is an immutable object and can be instantiated from a [Point](Crypto.md), string, [PrivateKey](PrivateKey.md), Buffer and a [BN](Crypto.md).
+Represents a bitcoin public key and is needed to be able to receive bitcoin, as is usually represented as a bitcoin [Address](address.md), see the official [Bitcoin Wiki](https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses). A PublicKey in Bitcore is an immutable object and can be instantiated from a [Point](crypto.md), string, [PrivateKey](privatekey.md), Buffer and a [BN](crypto.md).
 
 ## Instantiate a Public Key