image typos in documents fix

Change-Id: I357ff2d99bc2dff9ac27cfd6d1e97afb35740dbc
diff --git a/docs/html/design/media/metrics_diagram.png b/docs/html/design/media/metrics_diagram.png
index 3cdc5e6..5cbe252 100644
--- a/docs/html/design/media/metrics_diagram.png
+++ b/docs/html/design/media/metrics_diagram.png
Binary files differ
diff --git a/docs/html/design/media/switches_switches.png b/docs/html/design/media/switches_switches.png
index 43e2623..120955d 100644
--- a/docs/html/design/media/switches_switches.png
+++ b/docs/html/design/media/switches_switches.png
Binary files differ
diff --git a/docs/html/design/media/typography_sizes.png b/docs/html/design/media/typography_sizes.png
index eda1d99..fe6cdce 100644
--- a/docs/html/design/media/typography_sizes.png
+++ b/docs/html/design/media/typography_sizes.png
Binary files differ