Add more instructions to contributing

docs/contributing.md

@@ -30,7 +30,38 @@ Documentation is written as a series of markdown files nested by topic in direct
 
 ## Adding new documentation
 
-_Instructions forthcoming on how to find the right place to add your docs._
+As outlined in [this IA issue](https://github.com/AlexsLemonade/OpenScPCA-analysis/issues/61), we have several sections of documentation.
+The diagram below shows the directory structure for the docs, for now considering only the top three directory levels.
+The directory names as written in the IA issue are shown in parentheses.
 
-Files and directories should be named with all lowercase letters using `-`, not `_`, where needed.
+Each bold bullet point in the IA issue is a directory, and each plain-text bullet is a markdown file.
+Consult the IA issue and this directory structure to determine where to place new markdown file.
+
+If the IA indicates this file should be in an even more nested directory, don't worry about it for now; later, we will add additional nested directores as more documentation comes together.
+
+Files and directories should be named with all lowercase letters and use `-`, not `_`, where needed.
 **Be sure to consult the [style guide](./general-style-guide.md) when writing your documentation.**
+
+```
+├── welcome (Welcome to OpenScPCA)
+│   ├── accessing-resources (Getting access to resources)
+│   └── getting-started (Getting Started)
+├── technical-setup (Setting up)
+│   └── environment-setup (Getting access to resources)
+├── communications-tools (Communicating within the Project)
+│   ├── github-discussions (Github Discussions)
+│   └── github-issues (Github Issues)
+│       └── writing-issues (Writing good issues)
+├── contributing-to-analyses (Contributing to an analysis)
+│   ├── analysis-modules (Analysis modules)
+│   ├── doing-analyses (Doing an analysis)
+│   │   └── working-with-git (Working with git)
+│   ├── planning-analyses (Planning your analysis)
+│   └── pull-requests (Creating Pull Requests)
+├── software-platforms (Software tools)
+│   ├── aws
+│   ├── docker
+│   └── lsfr
+└── troubleshooting-faq (Getting help & FAQ)
+```
+