1 files changed, 10 insertions, 0 deletions
diff --git a/README.md b/README.md
index 53c8804..0ba7922 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,16 @@ Draw sexp.
 raco pkg install https://github.com/tojoqk/pict-sexp.git
 ```
 
+# UPDATE
+```
+raco pkg update https://github.com/tojoqk/pict-sexp.git
+````
+
+# UNINSTALL
+```
+raco pkg remove pict-sexp
+```
+
 # USAGE
 Save as "pict-fib.png".
 ```