test dynamically getting feature branch image

Author: rxu17

.devcontainer/devcontainer.json

@@ -1,6 +1,9 @@
 {
-    "image": "ghcr.io/sage-bionetworks/genie:develop",
-    "mounts": [
-        "source=${localEnv:HOME}/.synapseConfig,target=/root/.synapseConfig,type=bind,consistency=cached"
-    ]
+  "name": "genie-dev",
+  "image": "ghcr.io/sage-bionetworks/genie:${localEnv:BRANCH_NAME}",
+  "mounts": [
+    "source=${localEnv:HOME}/.synapseConfig,target=/root/.synapseConfig,type=bind,consistency=cached"
+  ],
+  "runArgs": ["--env", "BRANCH_NAME=${localEnv:BRANCH_NAME}"],
+  "workspaceFolder": "/workspace"
 }

README.md

@@ -107,7 +107,7 @@ These are instructions on how you would develop and test the pipeline locally.
     pip install -r requirements-dev.txt
     ```
 
-    If you are having trouble with the above, try installing via `pipenv`
+    If you are having trouble with the above, try installing via [pipenv](https://pipenv.pypa.io/en/latest/installation.html)
 
     1. Specify a python version that is supported by this repo:
         ```pipenv --python <python_version>```