Rename docs/*.md => docs/*.txt

The documentation uses features of Python-Markdown that are not supported on
GitHub and it's better to get a source view of the docs anyway. For example,
that way comments and bug reports can reference a specific line of a file.

Of course, it makes sense for Github to render the README, so that is left
with the `.md` file extension.

1 files changed, 0 insertions, 68 deletions

diff --git a/docs/extensions/footnotes.md b/docs/extensions/footnotes.md
deleted file mode 100644
index 1d6593c..0000000
--- a/docs/extensions/footnotes.md
+++ /dev/null
@@ -1,68 +0,0 @@
-title:      Footnotes Extension
-prev_title: Fenced Code Block Extension
-prev_url:   fenced_code_blocks.html
-next_title: Tables Extension
-next_url:   tables.html
-
-Footnotes
-=========
-
-Summary
--------
-
-An extension to Python-Markdown that adds footnote syntax. This extension has 
-been included with Python-Markdown since 1.7 and should be available to anyone 
-who has a typical install of Python-Markdown.
-
-Syntax
-------
-
-Python-Markdown's Footnote syntax follows the generally accepted syntax of the 
-Markdown community at large and almost exactly matches [PHP Markdown Extra][]'s
-implementation of footnotes. The only differences involve a few subtleties in 
-the output.
-
-[PHP Markdown Extra]: http://michelf.com/projects/php-markdown/extra/#footnotes
-
-Example:
-
-    Footnotes[^1] have a label[^label] and a definition[^!DEF].
-
-    [^1]: This is a footnote
-    [^label]: A footnote on "label"
-    [^!DEF]: The definition of a footnote.
-
-A footnote definition may contain multiple lines, paragraphs, code blocks, 
-blockquotes and most any other markdown syntax. The additional line simply 
-must be indented at least an additional four spaces.
-
-    [^1]: The first paragraph of the definition.
-
-        Paragraph two of the definition.
-
-        > A blockquote with
-        > multiple lines.
-
-            a code block
-
-        A final paragraph.
-
-By default, the footnote definitions are placed at the end of the resulting 
-HTML document. However, you may want the footnotes in another location within 
-the document. Simply place the following text at that location within your 
-markdown document (See how to configure this text below):
-
-    ///Footnotes Go Here///
-
-Usage
------
-
-From the Python interpreter:
-
-    >>> html = markdown.markdown(text, ['footnotes'])
-
-To configure the place marker for footnote definitions (just be sure not to 
-use any existing markdown syntax):
-
-    >>> html = markdown.markdown(text, ['footnotes(PLACE_MARKER=+++my marker+++)'])
-