fix an error in the script, add deploy prereqs to readme

README.md

@@ -107,6 +107,11 @@ const response = await apiFetch( {
 
 ### Deploying
 
+Prerequisites:
+
+- [Hub](https://github.com/github/hub)
+- Write access to this repository
+
 You can create a test ZIP of the plugin using this command:
 
 ```

bin/release-to-github.sh

@@ -5,12 +5,6 @@ if ! [ -x "$(command -v hub)" ]; then
   exit 1
 fi
 
-if [[ $1 == '' || $2 == '' ]]
-  then
-    output 1 "Please supply a tag and zip file name"
-    exit 1
-fi
-
 echo "Releasing to GitHub"
 echo "==================="
 echo "Before proceeding:"