minor stylistic edits (#712)

docs/index.rst

@@ -4,6 +4,7 @@
 0x Protocol is the trusted open source settlement layer for the permissionless global exchange of value.
 
 This documentation is aimed to serve as the canonical technical documentation for 0x Protocol and the system of smart contracts that make up its full functionality. The structure of this documentation is as follows: 
+
 - Architectural Overview of the whole system of smart contracts that 0x Protocol is comprised of.
 - Subsections will provide a deep dive into each contracts
 - Tutorial and tools to get started building with/on top of 0x Protocol
@@ -16,12 +17,12 @@ Connect with the community on our `Forum <https://forum.0xProtocol.org/>`_, `Dis
 
 
 .. image:: ./_static/img/logo.png
-    :width: 20%
+    :width: 60%
     :alt: 0x Protocol logo
     :align: center
 
 .. toctree::
-   :maxdepth: 2
+   :maxdepth: 1
    :caption: Architecture
 
    architecture/overview.rst
@@ -35,7 +36,7 @@ Connect with the community on our `Forum <https://forum.0xProtocol.org/>`_, `Dis
    architecture/plp_sandbox.rst
 
 .. toctree::
-   :maxdepth: 2
+   :maxdepth: 1
    :caption: Basics
 
    basics/orders.rst
@@ -46,7 +47,7 @@ Connect with the community on our `Forum <https://forum.0xProtocol.org/>`_, `Dis
    basics/addresses.rst
 
 .. toctree::
-   :maxdepth: 2
+   :maxdepth: 1
    :caption: Advanced
 
    advanced/mtx.rst
@@ -55,14 +56,14 @@ Connect with the community on our `Forum <https://forum.0xProtocol.org/>`_, `Dis
    advanced/uniswap.rst
 
 .. toctree::
-   :maxdepth: 2
+   :maxdepth: 1
    :caption: Guide
 
    guides/nft_guide.rst
    guides/smart_nonce.rst
 
 .. toctree::
-   :maxdepth: 2
+   :maxdepth: 1
    :caption: Additional Material
 
    additional/audits.rst
@@ -81,4 +82,4 @@ Connect with the community on our `Forum <https://forum.0xProtocol.org/>`_, `Dis
    Forum <https://forum.0xProtocol.org/>
    Reddit <https://www.reddit.com/r/0xProject/>
    Discord <https://discord.com/invite/official0x>
-   Twitter <https://twitter.com/0xproject>
+   Twitter <https://twitter.com/zeroexprotocol>