Add readmes for the new low-level low-pass filter demo

README.md

@@ -1 +1,38 @@
 # Eclypse Z7 Root Repository
+
+## Eclypse Z7 Low-Level Low-Pass Filter Demo
+
+### Description
+
+This branch contains sources for the Eclypse Z7 Low-Level Low-Pass Filter Demo.
+
+Describe the demo.
+
+For more information on the Eclypse Z7 Low-Level Low-Pass Filter Demo, including setup instructions, visit its [Demo Page](https://digilent.com/reference/programmable-logic/eclypse-z7/demos/low-level-low-pass-filter) on the Digilent Wiki.
+
+For more information on the Eclypse Z7, including other demos that may be available, see its [Resource Center](https://reference.digilentinc.com/reference/programmable-logic/eclypse-z7/start) on the Digilent Wiki.
+
+### Git Navigation Information
+
+For instructions on how to use this repository with git, and for additional documentation on the submodule and branch structures used, please visit [Digilent FPGA Demo Git Repositories](https://reference.digilentinc.com/reference/programmable-logic/documents/git) on the Digilent Wiki. Note that use of git is not required to use this demo. Digilent recommends the use of project releases, for which instructions can be found in each demo wiki page, linked above.
+
+To see other demos in this repository, see the master branch's [README](https://github.com/Digilent/Eclypse-Z7).
+
+Some demos do not require some submodules, in these cases, they are still provided to ease switching between demos in git. When unused, the submodule folder is largely empty, except for a readme containing only the heading "Root commit". This demo contains the following submodules:
+
+| Submodule | Used by this demo |
+|-----------|-------------------|
+| HW        | Yes               |
+| OS        | No                |
+| SW        | No                |
+
+### Requirements
+
+The following are required for use of this demo. For more information on how to get any hardware or software you may be missing, see the Demo Page, linked above.
+
+* Eclypse Z7
+* Zmod Scope: Zmod Scope 1410, Zmod Scope 1210, or Zmod Scope 1010
+* Zmod AWG 1411
+* Analog Discovery 2
+* Discovery BNC Adapter
+* BNC-to-SMA cables (or BNC-to-SMA adapters with BNC or SMA cables) are recommended