Adjusted README.md to GPL-3.0-or-later.

README.md

@@ -1,4 +1,3 @@
-
 # HexoDSP - Comprehensive DSP graph and synthesis library for developing a modular synthesizer in Rust, such as HexoSynth.
 
 This project contains the complete DSP backend of the modular
@@ -175,7 +174,7 @@ You can support me (and the development of this project) via Liberapay:
 This project is licensed under the GNU Affero General Public License Version 3 or
 later.
 
-### Why (A)GPL?
+### Why GPL?
 
 The obivious reason is that this project copied and translated code from many
 other free software / open source synthesis projects. The sources
@@ -205,8 +204,8 @@ _why I publish the code_, when I could as well keep it to myself:
 - To exchange knowledge and help other developers.
 - And it's a nice change to put some more polish on my private projects.
 
-Most of those reasons don't yet justify (A)GPL. The main point of the (A)GPL, as far
-as I understand: The (A)GPL makes sure the software stays free software until
+Most of those reasons don't yet justify GPL. The main point of the GPL, as far
+as I understand: The GPL makes sure the software stays free software until
 eternity. That the _end user_ of the software always stays in control. That the users
 have the means to adapt the software to new platforms or use cases.
 Even if the original authors don't maintain the software anymore.
@@ -219,7 +218,7 @@ value. If I give away my work without _any_ strings attached, I effectively
 work for free. This compromises the price I (and potentially other developers)
 can demand for the skill, workforce and time.
 
-This makes two reasons for me to choose the (A)GPL:
+This makes two reasons for me to choose the GPL:
 
 1. I do not want to support vendor lock in scenarios for free.
    I want to prevent those when I have a choice, when I invest my private