Figure edits

[KittyMurphy]

• [x] In plot showing overlap between ATAC-seq and RNA-seq results, show only ATAC-seq DARs and overlap
• [x] Show that APOE expression in APOE4-expressing microglia is significantly lower compared to APOE3
• [x] Supplementary figure showing logFC correlation: set axis to -8,8 for all plots
• [ ] WGCNA: run pathway enrichment analysis using IPA
• [x] Run pathway enrichment analysis using DEGs and DARs
• [x] Motif enrichment analysis: remove RNA-binding proteins in results
• [x] plot s-LDSC results
• [x] plot MAGMA results
• [ ] check why the plot showing ATAC-seq RNA-seq overlap doesn't agree with the overlap values I get when I check manually
• [x] chemokine/cytokine expression plots