diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ae05803b..3c494343 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -55,7 +55,8 @@ jobs:
           make github
           cd ..
           
-          git commit -m "release/v${{ github.event.inputs.new_version }}: updating version numbers" -a
+          git add .
+          git commit -m "release/v${{ github.event.inputs.new_version }}: updating version numbers"
           git push -u origin release/v${{ github.event.inputs.new_version }}
           
       - name: Merge into develop
diff --git a/.gitignore b/.gitignore
index 7cfac24e..1b4d8a20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,7 +10,6 @@ travis.yml
 .pytest_cache
 dist
 htmlcov
-*.png
 docsrc/_build
 .idea
 .DS_Store
diff --git a/docs/_images/examples_MCMC_Sampling_18_1.png b/docs/_images/examples_MCMC_Sampling_18_1.png
new file mode 100644
index 00000000..7d8e7193
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diff --git a/docs/_static/file.png b/docs/_static/file.png
new file mode 100644
index 00000000..a858a410
Binary files /dev/null and b/docs/_static/file.png differ
diff --git a/docs/_static/images/logo_icon.png b/docs/_static/images/logo_icon.png
new file mode 100644
index 00000000..a4be80e9
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diff --git a/docs/_static/images/logo_tm.png b/docs/_static/images/logo_tm.png
new file mode 100644
index 00000000..4a4f06aa
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diff --git a/docs/_static/minus.png b/docs/_static/minus.png
new file mode 100644
index 00000000..d96755fd
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diff --git a/docs/_static/plus.png b/docs/_static/plus.png
new file mode 100644
index 00000000..7107cec9
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