Add `npm link` stuff to the README

README.md

@@ -12,6 +12,37 @@ Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app w
 
 You can also user `npm run start:dev` to get a dev server with lazy loading. This makes development much more efficient
 
+## Development server
+
+Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.
+
+## Local Development with Sartography Libraries
+If you are making changes to the Sartography Libraries dependency, you
+can use npm link to connect the two systems.
+On the library side, run
+```bash
+ng build --watch
+```
+Then create a link to the built values by cd'ing into the dist directory (in a new terminal, leave the build above running)
+```bash
+cd sartography-libraries/dist/sartography-workflow-lib
+npm link
+```
+
+On the frontend code, link to the sartgraph-workflow-lib:
+```bash
+npm link sartography-workflow-lib
+ng serve
+```
+
+Also note that you may need to add
+ ```json
+             "preserveSymlinks": true
+```
+to your angular.json file in build/options.
+
+At this point any changes you make to the shared libraries should be immediately reflected in your locally running front end.
+
 ## Code scaffolding
 
 Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.