added enviroment.yml and changed readme to reflect using conda to build

Repository for the CartoCosmos Capstone Team.

### Building and running on localhost

#

Install conda:

* [Windows](https://docs.conda.io/projects/conda/en/latest/user-guide/install/windows.html) 

* [Mac](https://docs.conda.io/projects/conda/en/latest/user-guide/install/macos.html)

* [Linux](https://docs.conda.io/projects/conda/en/latest/user-guide/install/macos.html)

##### First install dependencies:

Clone repository

```sh

git clone https://github.com/GeoSTAC/CartoCosmos-with-STAC.git

```

Once the repository is cloned ```cd``` in to the ```app folder```

ie :

```sh

cd cloned_location/GeoSTAC/CartoCosmos/app

```

To setup the conda environment run the following command. 

```sh

conda env create -f environment.yml

``` 

Once the conda environment is created run the following command to activate it.

```sh

conda activate GeoSTAC

```

Then to install the project run

```sh

npm install

name: GeoSTAC

channels:

  - conda-forge

  - defaults

dependencies:

  - nodejs=16.13.1=hb931c9a_0