Added INSTRUCTIONS.md (#16)

INSTRUCTIONS.md

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+# Installation Instructions
+
+1. Create a folder and name it whatever you want. 
+
+```bash
+$ mkdir seax-project
+$ cd seax-project
+```
+2. Inside the folder, `clone` the **airlock** library and the **seax** project.
+
+```bash
+$ git clone https://github.com/ilyakooo0/airlock
+$ git clone https://github.com/ilyakooo0/seax
+```
+3. Download the v2.11 pill.
+
+```bash
+$ wget https://bootstrap.urbit.org/urbit-v2.11.pill
+```
+4. Start your fake zod using the pill.
+
+```bash
+$ urbit -B urbit-v2.11.pill -F zod
+```
+
+5. Now, inside dojo run the following:
+```bash
+dojo> |new-desk %seax
+dojo> |mount %seax
+```
+
+6. Back in your shell, run:
+```bash
+$ rm -r zod/seax
+$ cp -r seax/zod/seax zod/seax
+```
+
+7. In the dojo install the seax agent and allow cross-site origin requests from localhost.
+```bash
+dojo> |commit %seax
+dojo> |install our %seax
+dojo> |pass [%e [%approve-origin 'http://localhost:8000']]
+```
+
+8. While your urbit is running in another terminal run:
+```bash
+$ ./seax/dev/elm-live.sh
+```
+The above command will start the frontend which communicates with your zod ship 
+using the Elm airlock library.
+
+Now, you can go to your browser at `http://localhost:8000/`.
+The seax app should be displaying a search bar. You might need to refresh the page once before using the app.
+You'll know that everything works if you see the "< ~zod: Opening airlock!" message in your dojo. 
+
+# Usage Instructions
+
+Now, you can fill in the search bar with any term you like.
+Clicking "search" will iniate collect any relevant results from the configured search sources.
+In the results page, you can click on any of the sources to filter to only results from that source.