diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..a1363379944a5745ceb49c0e493d80eb9335c79a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.pdf
diff --git a/README.md b/README.md
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--- a/README.md
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@@ -4,7 +4,7 @@
 
 Generate invoices from the command line.
 
-## Text-based User Interface
+## Command Line Interface
 
 ```bash
 invoice generate --from "Dream, Inc." --to "Imagine, Inc." \