Update path to font file because existing path was giving an error (#1094)

* Update path to font file because existing path was giving an error

* Created example diagram

* Remove test diagrams

.devcontainer/Dockerfile

@@ -10,7 +10,7 @@ RUN apk update && apk add --no-cache \
 RUN go install github.com/mingrammer/round@latest
 
 # install fonts
-RUN curl -O https://noto-website.storage.googleapis.com/pkgs/NotoSansCJKjp-hinted.zip \
+RUN curl -O https://noto-website-2.storage.googleapis.com/pkgs/NotoSansCJKjp-hinted.zip \
 && mkdir -p /usr/share/fonts/NotoSansCJKjp \
 && unzip NotoSansCJKjp-hinted.zip -d /usr/share/fonts/NotoSansCJKjp/ \
 && rm NotoSansCJKjp-hinted.zip \