Apparently the GitHub strips styles anyway.

README.md

@@ -41,7 +41,7 @@ This theme is based loosely on [agnoster][agnoster].
      * _If you use virtualenv, you will probably need to disable the default virtualenv prompt, since it doesn't play nice with fish: `set -x VIRTUAL_ENV_DISABLE_PROMPT 1`_
  * Abbreviated parent directory
  * Current directory, or Git or Mercurial project name
- * Current project's repo branch (<img width="16" alt="branch-glyph" src="https://cloud.githubusercontent.com/assets/53660/8768360/53ee9b58-2e32-11e5-9977-cee0063936fa.png" style="vertical-align:bottom"> master) or detached head (`➦` d0dfd9b)
+ * Current project's repo branch (<img width="16" alt="branch-glyph" src="https://cloud.githubusercontent.com/assets/53660/8768360/53ee9b58-2e32-11e5-9977-cee0063936fa.png"> master) or detached head (`➦` d0dfd9b)
  * Git or Mercurial status, via colors and flags:
      * Dirty working directory (**`*`**)
      * Untracked files (**`…`**)