Update JetBrains.gitignore
@@ -1,4 +1,4 @@
-# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm
## Directory-based project format
.idea/