[Release] NNTrainer v0.5.0 release

NNTrainer v0.5.0 is released.

**Changes proposed in this PR:**
- Added TOC generator for README.md

Resolves:

**Self evaluation:**
1. Build test:	 [X]Passed [ ]Failed [ ]Skipped
2. Run test:	 [X]Passed [ ]Failed [ ]Skipped

Signed-off-by: jijoong.moon <[email protected]>

Author: jijoongmoon

debian/changelog

@@ -1,3 +1,9 @@
+nntrainer (0.5.0) unstable; urgency=medium
+
+  * 0.5.0 released
+
+ -- jijoongmoon <[email protected]>  Tue, 04 Apr 2023 08:57:24 +0900
+
 nntrainer (0.4.0) unstable; urgency=medium
 
   * 0.4.0 released

meson.build

@@ -1,5 +1,5 @@
 project('nntrainer', 'c', 'cpp',
-  version: '0.4.0',
+  version: '0.5.0',
   license: ['apache-2.0'],
   meson_version: '>=0.50.0',
   default_options: [

packaging/nntrainer.spec

@@ -49,7 +49,7 @@
 
 Name:		nntrainer
 Summary:	Software framework for training neural networks
-Version:	0.4.0
+Version:	0.5.0
 Release:	0
 Packager:	Jijoong Moon <[email protected]>
 License:	Apache-2.0
@@ -626,6 +626,8 @@ cp -r result %{buildroot}%{_datadir}/nntrainer/unittest/
 %endif
 
 %changelog
+* Tue Apr 04 2023 Jijoong Moon <[email protected]>
+- Release of 0.5.0
 * Mon Sep 26 2022 Jijoong Moon <[email protected]>
 - Release of 0.4.0
 * Fri Sep 24 2021 Jijoong Moon <[email protected]>