Changed filename to download.sh. Updated READMEs.

README.md

@@ -119,13 +119,14 @@ Reading a paper is not the same as reading a blogpost or a novel. Here are a few
 
 * Love a Paper - [@loveapaper](https://twitter.com/loveapaper)
 
-### Download all papers
+### Download papers
 
 Open your favourite terminal and run:
 
 ```bash
-$ ./scripts/download_all.sh
+$ ./scripts/download.sh
 ```
+See [README.md](./scripts/README.md) for more options.
 
 ## Contributing Guidelines
 

scripts/README.md

@@ -1,12 +1,22 @@
-# Download Utility
+# Scripts
 
-A nice little script to download all papers (pdfs) in the repo to their respective folders.
+Scripts for working with repository content.
+
+## Download Utility
+A convenience script to download papers. This will scrape the README.md files for URLs containing links to pdfs and download them to their respective directories.
 
 ### Usage
-Simply open a terminal and run:
+Open your favourite terminal and run:
+
+```bash
+$ ./scripts/download.sh
+```
+
+
+Optionally, to download specific topics specify their directories as arguments:
 
 ```bash
-$ ./download_all.sh
+$ ./scripts/download.sh android concurrency
 ```
 
 This can be run from anywhere as long as the script doesn't change location