diff --git a/README.md b/README.md
index dcb278f..51a9ed3 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,9 @@
 # Generate Timezone JSON
 
 ### Installation
-`npm i generate-timezone-json`
+Run `npm i generate-timezone-json` to install in your current node project
+
+or install globally with `npm i -g generate-timezone-json`
 
 ### Usage
 
@@ -10,11 +12,14 @@
 1. Run: `npx generate-timezone-json <filename>` to generate timezones.json from a TAB file, 
     - for example, using a file named "zone.tab": `generate-timezone-json zone.tab`
 
+If installed globally, the `npx` is optional.
+
 *Important Note:* the structure of the generated JSON file will be different depending on the source (i.e, zone.tab or the IANA timezones database)
 
 ### Planned features (not yet implemented)
 
 1. Specify an output directory with option `--outDir`: `generate-timezone <filename> --outDir <directory>`
 2. Uniform JSON structure for all sources
+3. type definitions