suggested changes to readme

README.md

@@ -4,28 +4,32 @@ R functions for gene selection and analysis of mFISH data
 
 mfishtools includes many functions that are used for analysis of data for the CZI SpaceTx project, and mostly relies on correlation-based analysis with filtering.  *This library is still in beta testing and may be buggy.  Community involvement is encouraged through both issues and pull requests.*  
 
-Install using:
-```
-# Quickly, but without the vignettes:
-devtools::install_github("AllenInstitute/mfishtools")
-
-# More slowly, but with the vignettes:
-devtools::install_github("AllenInstitute/mfishtools", build_opts = c("--no-resave-data", "--no-manual"))
-```
+## Installation
 
-Note that a couple of libraries need to be installed prior to running the vignettes:
+Install prerequisites:
 ```
 install.packages("devtools")
 devtools::install_github("AllenInstitute/scrattch.vis")
 devtools::install_github("AllenInstitute/tasic2016data")
 ```
 
-Note that some people may need to manually install the `GO.db` library:
+Note that some people may need to manually install the `GO.db` and `WGCNA` libraries as well:
 ```
 install.packages("BiocManager")
 BiocManager::install("GO.db")
+BiocManager::install("WGCNA")
+```
+
+Install `mfishtools` using:
+```
+# Quickly, but without the vignettes:
+devtools::install_github("AllenInstitute/mfishtools")
+
+# More slowly, but with the vignettes:
+devtools::install_github("AllenInstitute/mfishtools", build_opts = c("--no-resave-data", "--no-manual"))
 ```
 
+
 ## Library use cases
 
 There are two primary use cases for this libary: