diff --git a/.gitignore b/.gitignore
index c6e9ed6..d057ce8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 *.pptx
 *.pdf
-*.mp4
\ No newline at end of file
+*.mp4
+!gitflow.*
+!travis_CI.*
\ No newline at end of file
diff --git a/gitflow.pdf b/gitflow.pdf
new file mode 100644
index 0000000..f949020
Binary files /dev/null and b/gitflow.pdf differ
diff --git a/gitflow.pptx b/gitflow.pptx
new file mode 100644
index 0000000..44ffeda
Binary files /dev/null and b/gitflow.pptx differ
diff --git a/travis_CI.pdf b/travis_CI.pdf
new file mode 100644
index 0000000..7324b31
Binary files /dev/null and b/travis_CI.pdf differ
diff --git a/travis_CI.pptx b/travis_CI.pptx
new file mode 100644
index 0000000..93c7a50
Binary files /dev/null and b/travis_CI.pptx differ