Don't include code tags in Org headlines when creating slug

Fixes #58

example-site/content-org/all-posts.org

@@ -868,15 +868,15 @@ See [[http://orgmode.org/manual/Plain-lists.html][(org) Plain lists]] to read mo
 :EXPORT_DATE: 2017-08-02
 :END:
 This is a check-list:
-*** Checklist [40%]
+*** Checklist 1 [60%]
 Checklist showing progress in percentage.
 
 - [ ] Task 1
-- [ ] Task 2
+- [X] Task 2
 - [X] Task 3
 - [ ] Task 4
 - [X] Task 5
-*** Checklist [2/5]                                                  :@fixme:
+*** Checklist 2 [2/5]                                                :@fixme:
 Checklist showing progress in ratio.
 
 - [ ] Task 1

example-site/content/posts/checklist.md

@@ -8,18 +8,18 @@ draft = false
 This is a check-list:
 
 
-## Checklist <code>[40%]</code> {#checklist-code-40-code}
+## Checklist 1 <code>[60%]</code> {#checklist-1}
 
 Checklist showing progress in percentage.
 
 -   [ ] Task 1
--   [ ] Task 2
+-   [X] Task 2
 -   [X] Task 3
 -   [ ] Task 4
 -   [X] Task 5
 
 
-## Checklist <code>[2/5]</code> {#checklist-code-2-5-code}
+## Checklist 2 <code>[2/5]</code> {#checklist-2}
 
 Checklist showing progress in ratio.
 

ox-hugo.el

@@ -320,6 +320,7 @@ returned slug string has the following specification:
 
 - Should contain only lower case alphabet, number and hyphen
   characters.
+- Remove \"<code>..</code>\" part from STR if present.
 - URLs if present in STR should be removed.
 - Replace \".\" in STR with \"and\", and \"&\" with \"and\".
 - Parentheses should be replaced with double-hyphens ( \"foo (bar)
@@ -331,6 +332,8 @@ returned slug string has the following specification:
   returned string ."
   (let* (;; All lower-case
          (str (downcase str))
+         ;; Remove "<code>..</code>" stuff if present
+         (str (replace-regexp-in-string "<code>.*</code>" "" str))
          ;; Remove URLs if present in the string
          ;; The ")" in the below regexp is the closing parenthesis of a
          ;; Markdown link: [Desc](Link)