diff --git a/.gitignore b/.gitignore
index 4f23e9d3..f9d431ca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,4 +17,5 @@ type_info.json
 .coverage
 .coverage.*
 coverage.xml
-py7zr/version.py
\ No newline at end of file
+py7zr/version.py
+prof
diff --git a/MANIFEST.in b/MANIFEST.in
index d4a2747a..61d0c94a 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,4 @@
+include *.png
 include *.rst
 include *.svg
 include *.toml
@@ -23,6 +24,7 @@ recursive-include docs *.rst
 recursive-include docs *.yml
 recursive-include docs *.odp
 recursive-include docs *.pdf
+recursive-include docs *.svg
 recursive-include docs *.txt
 recursive-include docs Makefile
 prune .github
diff --git a/docs/social_preview.png b/docs/social_preview.png
new file mode 100644
index 00000000..a5d1e152
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diff --git a/docs/social_preview.svg b/docs/social_preview.svg
new file mode 100644
index 00000000..6f00487a
--- /dev/null
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