diff --git a/README.md b/README.md
index 04d3bc8..5a4115b 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,7 @@ Process model:
 velocity:
 
 $$
+\Large
 \begin{flalign}
 & v_k = v_{k-1} + aT - \hat{a}_{k-1}T &
 \end{flalign}