Use https for project doc URLs

bestpractices.dev sites_https wants every project-owned URL on TLS.
Readthedocs already serves https on bitmath.readthedocs.io, so this
is just flipping the scheme. Touched:

- README.rst badge target and intro/docs links
- docsite/source/index.rst.in (and the regenerated index.rst)
- NEWS.rst historical doc links (13 of them)
- .github/CONTRIBUTING.md

Author: timlnx

.github/CONTRIBUTING.md

@@ -1,3 +1,3 @@
 Please see the
-[Contributing Guidelines](http://bitmath.readthedocs.org/en/latest/contributing.html)
+[Contributing Guidelines](https://bitmath.readthedocs.io/en/latest/contributing.html)
 on Read The Docs.

NEWS.rst

@@ -533,20 +533,20 @@ Changes
 
 * New utility: ``progressbar`` integration:
   `bitmath.integrations.BitmathFileTransferSpeed
-  <http://bitmath.readthedocs.io/en/latest/module.html#progressbar>`_.
+  <https://bitmath.readthedocs.io/en/latest/module.html#progressbar>`_.
   A more functional file transfer speed widget.
 
 
 Documentation
 =============
 
 * The command-line ``bitmath`` tool now has `online documentation
-  <http://bitmath.readthedocs.io/en/latest/commandline.html>`_
+  <https://bitmath.readthedocs.io/en/latest/commandline.html>`_
 * A full demo of the ``argparse`` and ``progressbar`` integrations has
   been written. Additionally, it includes a comprehensive
   demonstration of the full capabilities of the bitmath library. View
   it in the *Real Life Demos* `Creating Download Progress Bars
-  <http://bitmath.readthedocs.io/en/latest/real_life_examples.html#real-life-examples-download-progress-bars>`_
+  <https://bitmath.readthedocs.io/en/latest/real_life_examples.html#real-life-examples-download-progress-bars>`_
   example.
 
 
@@ -613,7 +613,7 @@ Changes
   <https://github.com/timlnx/bitmath/issues/35>`_ added. Provides
   CLI access to basic unit conversion functions
 * New utility function `bitmath.parse_string
-  <http://bitmath.readthedocs.io/en/latest//module.html#bitmath-parse-string>`_
+  <https://bitmath.readthedocs.io/en/latest//module.html#bitmath-parse-string>`_
   for parsing a human-readable string into a bitmath object. `Patch
   submitted <https://github.com/timlnx/bitmath/pull/42>`_ by new
   contributor `tonycpsu <https://github.com/tonycpsu>`_.
@@ -634,7 +634,7 @@ Major Updates
 
 * bitmath has a proper documentation website up now on Read the Docs,
   check it out: `bitmath.readthedocs.io
-  <http://bitmath.readthedocs.io/en/latest/>`_
+  <https://bitmath.readthedocs.io/en/latest/>`_
 * bitmath is now Python 3.x compatible
 * bitmath is now included in the `Extra Packages for Enterprise Linux
   <https://fedoraproject.org/wiki/EPEL>`_ EPEL6 and EPEL7 repositories
@@ -659,25 +659,25 @@ Changes
 **Added Functionality**
 
 * `best-prefix
-  <http://bitmath.readthedocs.io/en/latest/instances.html#best-prefix>`_
+  <https://bitmath.readthedocs.io/en/latest/instances.html#best-prefix>`_
   guessing: automatic best human-readable unit selection
 * support for `bitwise operations
-  <http://bitmath.readthedocs.io/en/latest/simple_examples.html#bitwise-operations>`_
+  <https://bitmath.readthedocs.io/en/latest/simple_examples.html#bitwise-operations>`_
 * `formatting customization
-  <http://bitmath.readthedocs.io/en/latest/instances.html#format>`_
+  <https://bitmath.readthedocs.io/en/latest/instances.html#format>`_
   methods (including plural/singular selection)
 * exposed many more `instance attributes
-  <http://bitmath.readthedocs.io/en/latest/instances.html#instances-attributes>`_
+  <https://bitmath.readthedocs.io/en/latest/instances.html#instances-attributes>`_
   (all instance attributes are usable in custom formatting)
 * a `context manager
-  <http://bitmath.readthedocs.io/en/latest/module.html#bitmath-format>`_
+  <https://bitmath.readthedocs.io/en/latest/module.html#bitmath-format>`_
   for applying formatting to an entire block of code
 * utility functions for sizing `files
-  <http://bitmath.readthedocs.io/en/latest/module.html#bitmath-getsize>`_
+  <https://bitmath.readthedocs.io/en/latest/module.html#bitmath-getsize>`_
   and `directories
-  <http://bitmath.readthedocs.io/en/latest/module.html#bitmath-listdir>`_
+  <https://bitmath.readthedocs.io/en/latest/module.html#bitmath-listdir>`_
 * add `instance properties
-  <http://bitmath.readthedocs.io/en/latest/instances.html#instance-properties>`_
+  <https://bitmath.readthedocs.io/en/latest/instances.html#instance-properties>`_
   equivalent to ``instance.to_THING()`` methods
 
 Project

README.rst

@@ -12,7 +12,7 @@
    :alt: PyPI - Python Version
 
 .. image:: https://readthedocs.org/projects/bitmath/badge/?version=latest
-   :target: http://bitmath.rtfd.org/
+   :target: https://bitmath.readthedocs.io/
 .. image:: https://github.com/timlnx/bitmath/actions/workflows/bandit.yml/badge.svg
    :target: https://github.com/timlnx/bitmath/actions/workflows/bandit.yml
    :alt: Bandit Security Scan
@@ -42,7 +42,7 @@ bitmath
 * Bugs: https://github.com/timlnx/bitmath/issues
 * Contributing: https://bitmath.readthedocs.io/en/latest/contributing.html
 
-`bitmath <http://bitmath.readthedocs.org/en/latest/>`_ simplifies many
+`bitmath <https://bitmath.readthedocs.io/en/latest/>`_ simplifies many
 facets of interacting with file sizes in various units. Originally
 focusing on file size unit conversion, functionality now includes:
 
@@ -126,8 +126,8 @@ Documentation
 =============
 
 The main documentation lives at
-`http://bitmath.readthedocs.org/en/latest/
-<http://bitmath.readthedocs.org/en/latest/>`_.
+`https://bitmath.readthedocs.io/en/latest/
+<https://bitmath.readthedocs.io/en/latest/>`_.
 
 Topics include:
 

docsite/source/index.rst

@@ -12,7 +12,7 @@
    :alt: PyPI - Python Version
 
 .. image:: https://readthedocs.org/projects/bitmath/badge/?version=latest
-   :target: http://bitmath.rtfd.org/
+   :target: https://bitmath.readthedocs.io/
 .. image:: https://github.com/timlnx/bitmath/actions/workflows/bandit.yml/badge.svg
    :target: https://github.com/timlnx/bitmath/actions/workflows/bandit.yml
    :alt: Bandit Security Scan
@@ -42,7 +42,7 @@ bitmath
 * Bugs: https://github.com/timlnx/bitmath/issues
 * Contributing: https://bitmath.readthedocs.io/en/latest/contributing.html
 
-`bitmath <http://bitmath.readthedocs.org/en/latest/>`_ simplifies many
+`bitmath <https://bitmath.readthedocs.io/en/latest/>`_ simplifies many
 facets of interacting with file sizes in various units. Originally
 focusing on file size unit conversion, functionality now includes:
 

docsite/source/index.rst.in

@@ -12,7 +12,7 @@
    :alt: PyPI - Python Version
 
 .. image:: https://readthedocs.org/projects/bitmath/badge/?version=latest
-   :target: http://bitmath.rtfd.org/
+   :target: https://bitmath.readthedocs.io/
 .. image:: https://github.com/timlnx/bitmath/actions/workflows/bandit.yml/badge.svg
    :target: https://github.com/timlnx/bitmath/actions/workflows/bandit.yml
    :alt: Bandit Security Scan
@@ -42,7 +42,7 @@ bitmath
 * Bugs: https://github.com/timlnx/bitmath/issues
 * Contributing: https://bitmath.readthedocs.io/en/latest/contributing.html
 
-`bitmath <http://bitmath.readthedocs.org/en/latest/>`_ simplifies many
+`bitmath <https://bitmath.readthedocs.io/en/latest/>`_ simplifies many
 facets of interacting with file sizes in various units. Originally
 focusing on file size unit conversion, functionality now includes: