Fix typos in VNFSDK docs

Issue-ID: VNFSDK-270

Change-Id: Ia8b1fcf8f32fe2b15dd4facacee206ccff8b8c80
Signed-off-by: Chris Donley <christopher.donley@huawei.com>
diff --git a/docs/files/marketplace-overview.rst b/docs/files/marketplace-overview.rst
index df1dde0..8927ea1 100644
--- a/docs/files/marketplace-overview.rst
+++ b/docs/files/marketplace-overview.rst
@@ -3,7 +3,7 @@
 .. Copyright 2017 Huawei Technologies Co., Ltd.
 
 VNF SDK Marketplace
-===================
+-------------------
 
 VNF SDK provides a reference implementation "marketplace" to help vendors
 validate and manage VNF packages. It also supports the operator to onboard VNF
@@ -12,7 +12,7 @@
 
 |image0|
 
-.. |image0| image:: vnfsdk-marketplace.png
+.. |image0| image:: files/vnfsdk-marketplace.png
    :height: 600px
    :width: 800px