chore: fix typos

Author: noritaka1166

README.md

@@ -1040,7 +1040,7 @@ To change the user directory and/or account name follow the instructions [here](
 [Urchin]: https://git.sdf.org/tlevine/urchin
 [Fish]: https://fishshell.com
 
-**Homebrew makes zsh directories unsecure**
+**Homebrew makes zsh directories insecure**
 
 ```shell
 zsh compinit: insecure directories, run compaudit for list.

test/fast/Unit tests/nvm_is_version_installed

@@ -31,7 +31,7 @@ check_version() {
   mkdir -p "$NODE_PATH/$VERSION/bin" && cd "$NODE_PATH/$VERSION/bin" && touch "$NODE_PATH/$VERSION/bin/$BINARY"
   ! nvm_is_version_installed "$VERSION" || die "nvm_is_version_installed $VERSION should fail with non executable existing version"
 
-  # nvm_is_version_installed whould work
+  # nvm_is_version_installed would work
   chmod +x "$NODE_PATH/$VERSION/bin/$BINARY"
   nvm_is_version_installed "$VERSION" || die "nvm_is_version_installed $VERSION should work"
 }