feat(pinning): add pin.add spec

Author: daviddias

API/pinning-api/README.md

@@ -1,3 +1,58 @@
 pinning API
 ===========
 
+#### `add`
+
+> Pin an IPFS object to local storage
+
+##### `Go` **WIP**
+
+##### `JavaScript` - ipfs.pin.add(hash, [options, callback])
+
+Where:
+
+- `hash` is an IPFS multihash.
+- `options` is an object that can contain the following keys:
+  - `recursive` - Recursevely pin the object linked.
+
+`callback` must follow `function (err) {}` signature, where `err` is an error if the operation was not successful.
+
+If no `callback` is passed, a promise is returned.
+
+Example:
+
+```JavaScript
+ipfs.pin.add(hash, function (err) {})
+```
+
+
+#### `ls`
+
+> 
+
+##### `Go` **WIP**
+
+##### `JavaScript` - ipfs.SOMETHING(data, [callback])
+
+`callback` must follow `function (err, res) {}` signature, where `err` is an error if the operation was not successful. `res` will be an array of:
+
+If no `callback` is passed, a promise is returned.
+
+Example:
+
+
+
+#### `rm`
+
+> 
+
+##### `Go` **WIP**
+
+##### `JavaScript` - ipfs.SOMETHING(data, [callback])
+
+`callback` must follow `function (err, res) {}` signature, where `err` is an error if the operation was not successful. `res` will be an array of:
+
+If no `callback` is passed, a promise is returned.
+
+Example:
+