Fixed the indentation of the sections

- Moved AddAllAndPin as a subsection of UnixfsAPI.Add()

License: MIT
Signed-off-by: Nitish Malhotra <nitish.malhotra@gmail.com>

docs/add-code-flow.md

@@ -32,17 +32,19 @@ The goal of this document is to capture the code flow for adding a file (see the
 
 ---
 
-# **[`UnixfsAPI.Add()`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreapi/unixfs.go#L31)** - *Entrypoint into the `Unixfs` package*
+# Code Flow
+
+**[`UnixfsAPI.Add()`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreapi/unixfs.go#L31)** - *Entrypoint into the `Unixfs` package*
 
 The `UnixfsAPI.Add()` acts on the input data or files, to build a _merkledag_ node (in essence it is the entire tree represented by the root node) and adds it to the _blockstore_.
 Within the function, a new `Adder` is created with the configured `Blockstore` and __DAG service__`. 
 
-## **[`adder.AddAllAndPin(files)`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreunix/add.go#L403)** - *Entrypoint to the `Add` logic*
+- **[`adder.AddAllAndPin(files)`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreunix/add.go#L403)** - *Entrypoint to the `Add` logic*
     encapsulates a lot of the underlying functionality that will be investigated in the following sections. 
 
-Our focus will be on the simplest case, a single file, handled by `Adder.addFileNode(path, file)` handled by `Adder.addFile(pathm files.File)`. 
+    Our focus will be on the simplest case, a single file, handled by `Adder.addFileNode(path, file)` handled by `Adder.addFile(pathm files.File)`. 
 
-- **[`adder.addFile(path, files.File)`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreunix/add.go#L450)** - *Create the _DAG_ and add to `MFS`*
+  - **[`adder.addFile(path, files.File)`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreunix/add.go#L450)** - *Create the _DAG_ and add to `MFS`*
 
       The `addFile(file)` method takes the data and converts it into a __DAG__ tree and adds the root of the tree in to the `MFS`.
 
@@ -92,10 +94,10 @@ Our focus will be on the simplest case, a single file, handled by `Adder.addFile
                   
                   The `AddNodeLink()` method is where an `ipld.Link` is created with the `ipld.Node`'s `CID` and size in the `ipld.MakeLink(ipld.Node)` method, and is then appended to the `ProtoNode`'s links in the `ProtoNode.AddRawLink(name)` method.
 
-- **[`adder.Finalize()`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreunix/add.go#L200)** - *Fetch and return the __DAG__ **root** from the `MFS` and `UnixFS` directory*
+  - **[`adder.Finalize()`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreunix/add.go#L200)** - *Fetch and return the __DAG__ **root** from the `MFS` and `UnixFS` directory*
 
       The `Finalize` method returns the `ipld.Node` from the `UnixFS` `Directory`.
 
-- **[`adder.PinRoot()`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreunix/add.go#L171)** - *Pin all files under the `MFS` **root***
+  - **[`adder.PinRoot()`](https://github.com/ipfs/go-ipfs/blob/v0.4.18/core/coreunix/add.go#L171)** - *Pin all files under the `MFS` **root***
 
     The whole process ends with `PinRoot` recursively pinning all the files under the `MFS` **root**
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