update readme

README.md

@@ -46,7 +46,11 @@ gen/People/Person.fb.zig
 ```
 
 You can now import these files into your zig application.  The compiled .fb.zig
-files depend on a "flatbufferz" module which can be provided by:
+files depend on a "flatbufferz" module which can be provided by running:
+```console
+zig fetch --save=flatbufferz https://github.com/travisstaloch/flatbufferz/archive/be8fc9bfdfe416fe5b2ce24ed8f0e16700c103fb.tar.gz
+```
+That will add a dependency to your build.zig.zon:
 ```zig
 // build.zig.zon
 .{
@@ -56,7 +60,7 @@ files depend on a "flatbufferz" module which can be provided by:
     .dependencies = .{
         .flatbufferz = .{
             // note: you may need to change this url commit hash
-            .url = "https://github.com/travisstaloch/flatbufferz/archive/f8c035f29893a2b30902ed61b0d8702e8f52f435.tar.gz",
+            .url = "https://github.com/travisstaloch/flatbufferz/archive/be8fc9bfdfe416fe5b2ce24ed8f0e16700c103fb.tar.gz",
         },
     }
 }
@@ -73,6 +77,10 @@ const flatbufferz_mod = flatbufferz_dep.module("flatbufferz");
 my_exe.addModule("flatbufferz", flatbufferz_mod);
 ```
 
+# Gen Step
+To generate code in your build.zig see the example in #18.
+
+
 # Tools
 Convert .bfbs to .fbs.
 ```console