Fix errors in the README

There were duplicate explicit target name errors in the README.

Learn more here, sphinx-doc/sphinx#3921.

Author: dwayne

CHANGELOG.md

@@ -5,7 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## 0.0.1-alpha.1
+## 0.0.1-alpha.2 (2018-10-02)
+
+### Fixed
+
+- Duplicate explicit target name errors in the README.
+
+## 0.0.1-alpha.1 (2018-10-02)
 
 ### Added
 

Pipfile

@@ -12,6 +12,7 @@ ipython = "*"
 setuptools = "*"
 wheel = "*"
 twine = "*"
+"collective.checkdocs" = "*"
 
 [requires]
 python_version = "3.7"

Pipfile.lock

@@ -54,7 +54,7 @@ is facing upwards, :code:`r` means the robot is facing towards the right,
 :code:`d` means the robot is facing downwards, or :code:`l` means the robot is
 facing towards the left).
 
-**N.B.** You can find an example level `here <https://github.com/dwayne/herbert-python/blob/master/data/example/level3.txt>`_.
+**N.B.** You can find an example level `here <https://github.com/dwayne/herbert-python/blob/master/data/example/level3.txt>`__.
 
 On each level there are some white buttons. To solve a level you must press all
 the white buttons. Your goal then is to program Herbert, in a language called
@@ -72,12 +72,12 @@ allotted maximum number of bytes.
 **The "h" language**
 
 It is a simple language that contains statements, procedures with zero or more
-parameters and recursion. Check out the tutorial `here <https://github.com/dwayne/herbert-python/blob/master/data/resources/Tutorial.aspx.html>`_
+parameters and recursion. Check out the tutorial `here <https://github.com/dwayne/herbert-python/blob/master/data/resources/Tutorial.aspx.html>`__
 to get a better understanding of the language.
 
-You can find examples of the language in use `here <https://github.com/dwayne/herbert-python/blob/master/data/example/sol3a.h>`_,
-`here <https://github.com/dwayne/herbert-python/blob/master/data/example/sol3b.h>`_
-and `here <https://github.com/dwayne/herbert-python/blob/master/data/example/sol3c.h>`_.
+You can find examples of the language in use `here <https://github.com/dwayne/herbert-python/blob/master/data/example/sol3a.h>`__,
+`here <https://github.com/dwayne/herbert-python/blob/master/data/example/sol3b.h>`__
+and `here <https://github.com/dwayne/herbert-python/blob/master/data/example/sol3c.h>`__.
 
 **Challenge**
 

README.rst

@@ -1,2 +1,2 @@
 PROGRAM_NAME = 'Herbert'
-VERSION = '0.0.1-alpha.1'
+VERSION = '0.0.1-alpha.2'