Update git submodules

* Update docs/submodules/qtip from branch 'stable/danube'
  - Normalize all section headers
    
    - folder with `index.rst` for parts, using # with overline for heading
    - `*.rst` file for chapter, using * with overline for heading
    
    In each *.rst file, use the following token for heading
    
    - =, for sections
    - -, for subsections
    - ^, for subsubsections
    - ", for paragraphs
    
    Change-Id: I6c247c1f1e27e891d0dade099195ef521f7dbb72
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>
    

1 files changed, 0 insertions, 0 deletions

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
-Subproject 88f69a8d9977228a225333f084dc95adc2312f1
+Subproject 0c8fdfafa8a85dd6e25497a9f9af9694e75ee4a