Include completion scripts in Darwin package

Author: dduan

Documentation/GettingStarted.md

@@ -224,4 +224,4 @@ for the corresponding `false` value.
 
 DrString has a lot of CLI options! You may install one of the completion scripts
 included in the project if one exists for your shell. You can find them
-[here](../../Scirpts/completions).
+[here](../../Scripts/completions).

Scripts/package-darwin.sh

@@ -7,9 +7,10 @@ SWIFT_PATH=$(xcrun --find swift)
 rm -rf $LIB_PATH
 rm -rf $BIN_PATH
 mkdir -p $LIB_PATH
-mkdir -p $BUILD_PATH/bin
+mkdir -p $BUILD_PATH/{bin,completions}
+cp -r Scripts/completions/* $BUILD_PATH/completions
 cp .build/release/drstring $BIN_PATH
 cp "$(dirname $SWIFT_PATH)/../lib/swift/macosx/lib_InternalSwiftSyntaxParser.dylib" $LIB_PATH/lib_InternalSwiftSyntaxParser.dylib
 install_name_tool -add_rpath @executable_path/../lib $BIN_PATH
-tar -C $BUILD_PATH -czf drstring.tar.gz bin lib
+tar -C $BUILD_PATH -czf drstring.tar.gz bin lib completions
 mv drstring.tar.gz .build