Add information on how to run to README

README.md

@@ -1,5 +1,8 @@
 # Examples for async-graphql
 
+A git submodule that shows example async-graphql projects.
+
+
 ## Directory structure
 
 - [poem] Examples for `poem`
@@ -9,3 +12,28 @@
 - [rocket] Examples for `rocket`
 - [axum] Examples for `axum`
 - [federation] Examples for [Apollo Federation](https://www.apollographql.com/docs/federation/)
+
+
+## Running Examples
+
+To run the examples, clone the top-level repo, [async-graphql](https://github.com/async-graphql/async-graphql) and then issue the following commands:
+
+```bash
+git clone async-graphql/async-graphql
+# in async-graphql repo, install needed dependencies
+cargo build
+
+# update this repo as a git submodule
+git submodule update
+```
+
+To run the example axum-starwars:
+```
+# change into the example folder and run a relevant binary
+cargo run --bin axum-starwars
+```
+
+To list all available binary targets:
+```
+cargo run --bin
+```