Move fpdfsdk/pdfwindow to fpdfsdk/pwl

This makes it clearer what the directory contains.

Change-Id: I34fc38dd30b8e0f6e057052ea33c8b5a10f1b9c3
Reviewed-on: https://pdfium-review.googlesource.com/8791
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
diff --git a/docs/getting-started.md b/docs/getting-started.md
index 8d46a74..0cf2ff3 100644
--- a/docs/getting-started.md
+++ b/docs/getting-started.md
@@ -73,7 +73,7 @@
 ```
 PDF_LIBS="-lpdfium -lfpdfapi -lfxge -lfpdfdoc -lfxcrt -lfx_agg \
 -lfxcodec -lfx_lpng -lfx_libopenjpeg -lfx_lcms2 -lfx_freetype -ljpeg \
--lfdrm -lpdfwindow -lbigint -lformfiller -ljavascript -lfxedit"
+-lfdrm -lpwl -lbigint -lformfiller -ljavascript -lfxedit"
 PDF_DIR=<path/to/pdfium>
 
 clang -I $PDF_DIR/public -o init init.c -L $PDF_DIR/out/Debug -lstdc++ -framework AppKit $PDF_LIBS