Remove instructions for mapper branch release v1 (#59)

* Remove instructions for mapper branch release v1

* docs: simplify upload instructions

---------

Co-authored-by: Dan Birman <danbirman@gmail.com>

Author: dougollerenshaw

docs/source/acquire_upload/prepare_before_acquisition.md

@@ -355,19 +355,9 @@ We recommend that basic maintenance changes, e.g. replacing a device with an ide
 
 #### I'm ready to upload my instrument JSON file to the database
 
-If you want to store your Instrument metadata file in the Scientific Computing managed database (only 2.0 schema instrument files are supported), you can follow these steps to post your instrument json file to the database:
-
-Note that you must currently have the `release-v1.0.0` branch of `aind-metadata-mapper` installed:
-```bash
-git clone https://github.com/AllenNeuralDynamics/aind-metadata-mapper.git
-cd aind-metadata-mapper
-git checkout release-v1.0.0
-conda create -n instrument_uploader # or whatever you want your env to be called
-conda activate instrument_uploader
-pip install -e .
-```
+If you want to store your Instrument metadata file in the Scientific Computing managed database (only 2.0 schema instrument files are supported) you can use the [aind-metadata-mapper](https://github.com/AllenNeuralDynamics/aind-metadata-mapper/#aind-metadata-mapper) package. Install it with `pip install aind-metadata-mapper`.
 
-Then run the following in python
+Then run the following upload code:
 
 ```python
 from aind_metadata_mapper import utils