Bump version to 0.6

Makefile

@@ -1,4 +1,4 @@
-VERSION := 0.5
+VERSION := 0.6
 
 clean:
 	rm -rfv build Manifest.toml test/Manifest.toml deps/formatter/build deps/formatter/Manifest.toml

README.md

@@ -15,14 +15,14 @@
 
 
 
-<img src="https://anl-ceeesa.github.io/RELOG/0.5/assets/ex_transportation.png" width="1000px"/>
+<img src="https://anl-ceeesa.github.io/RELOG/0.6/assets/ex_transportation.png" width="1000px"/>
 
 ### Documentation
 
-  * [Usage](https://anl-ceeesa.github.io/RELOG/0.5/usage)
-  * [Input and Output Data Formats](https://anl-ceeesa.github.io/RELOG/0.5/format)
-  * [Simplified Solution Reports](https://anl-ceeesa.github.io/RELOG/0.5/reports)
-  * [Optimization Model](https://anl-ceeesa.github.io/RELOG/0.5/model)
+  * [Usage](https://anl-ceeesa.github.io/RELOG/0.6/usage)
+  * [Input and Output Data Formats](https://anl-ceeesa.github.io/RELOG/0.6/format)
+  * [Simplified Solution Reports](https://anl-ceeesa.github.io/RELOG/0.6/reports)
+  * [Optimization Model](https://anl-ceeesa.github.io/RELOG/0.6/model)
 
 ### Authors