fix: typos (#55)

Author: marcwrobel

setup.bash

@@ -14,7 +14,7 @@ PLUGIN_NAME.
 
 TOOL_TEST.
    A shell command used to test correct installation.
-   Normallly this command is something taking \`--version\` or \`--help\`.
+   Normally this command is something taking \`--version\` or \`--help\`.
 
 GH_USER.
    Your GitHub/GitLab username.

template/lib/utils.bash

@@ -69,6 +69,6 @@ install_version() {
     echo "$TOOL_NAME $version installation was successful!"
   ) || (
     rm -rf "$install_path"
-    fail "An error ocurred while installing $TOOL_NAME $version."
+    fail "An error occurred while installing $TOOL_NAME $version."
   )
 }