[Bug] False detection of shebang

[sky-joker]

Hi, @weituotian.

Thank you very good plugin.

I noticed.
if there is shebang in markdown malfunction occurs.

for example

Fixed the malfunction by correcting the source as follows.

--- before/example.py   2018-03-24 18:36:33.000000000 +0900
+++ after/example.py    2018-03-24 18:36:27.000000000 +0900
@@ -70,7 +70,7 @@
     def get_toc(self, begin, edit):
 
         # Search headings in docment
-        pattern_hash = "^#+?[^#]"
+        pattern_hash = "^#+?[^!#]"
 
         headings = self.view.find_all(pattern_hash)

thansk.

[Kristinita]

+1. It would be nice, if md_numbered_headers will ignore # symbols in all GitHub Flavored Markdown code blocks for any language.

Thanks.

[weituotian]

@sky-joker @Kristinita
Great! this issue and the advice are excellent!
i am attempted to find a way to do that!