Update README.md

Add information on getting textual IR out of the dataset.

README.md

@@ -117,6 +117,23 @@ next(iter(ds))
 ds[0]
 ```
 
+If you're interested in getting textual IR instead of bitcode, you can simply run `llvm-dis`
+over the bitcode which will return the IR in textual form. Using Python's `subprocess` module
+to do this looks something like this:
+
+```python
+bitcode_module = next(iter(ds))['content']
+dis_command_vector = ['llvm-dis', '-']
+with subprocess.Popen(
+    dis_command_vector,
+    stdout=subprocess.PIPE,
+    stderr=subprocess.STDOUT,
+    stdin=subprocess.PIPE) as dis_process:
+  output = dis_process.communicate(
+      input=bitcode_module)[0].decode('utf-8')
+  # the variable output contains the textual IR that can be used downstream.
+```
+
 Filtering and map operations can be performed with the primitives available within the
 HuggingFace `datasets` library.