added info in READMEs

sdt_dask/clients/aws/README.md

@@ -43,7 +43,7 @@ If you have additional dependencies, install them as well (both Docker image and
 ## Docker Image
 
 1. Install your python requirements and all dependencies as steps in your dockerfile.  
-   Here's a sample dockerfile with solar-data-tools dependencies and all the packages listed above: [link](Dockerfile)  
+   Here's a sample dockerfile with solar-data-tools dependencies and all the packages listed above: [link](Dockerfile). (To create a ```requirements.txt``` file that works with pip in Docker from a conda env, you can install pip in your conda env, then run ```pip list --format=freeze > requirements.txt```).
 2. Build a docker image
    1. Go to the directory where your Dockerfile is
    2. ```docker build -t <YOUR_IMAGE_NAME> .```

sdt_dask/dataplugs/README.md

@@ -1,4 +1,12 @@
 # Prepare your data plug
 Here is the basic usage of the example data plugs and instruction on how to write you own.
 
-[TODO]
+**Note that if the data plug depends on any packages that are not in the Python standard library, they should be included in a requirements.txt file that accompanies the data plug.**
+
+[TODO] Fill out info about example data plugs and how users can write their own.
+
+[TODO] Make a standard attribute for data plugs: a tuple that has one, two or more values corresponding to the inputs that each data plug requires: 
+- CSV plug: list of file names
+- PVDAQ plug: files IDs and associated years
+- PVDB (Redshift) plug: list of site IDs and list of inverter index numbers
+	- needs list of non-standard libraries in requirements file (```requests``` only so far)