bug report instructions (#111)

Author: geoffroyleconte

README.md

@@ -17,3 +17,10 @@ subject to   L ≤ Ax ≤ U and ℓ ≤ x ≤ u,
 </p>
 
 where the square symmetric matrix Q is zero for linear optimization problems.
+
+## Bug reports and discussions
+
+If you think you found a bug, feel free to open an [issue](https://github.com/JuliaSmoothOptimizers/QuadraticModels.jl/issues).
+Focused suggestions and requests can also be opened as issues. Before opening a pull request, start an issue or a discussion on the topic, please.
+
+If you want to ask a question not suited for a bug report, feel free to start a discussion [here](https://github.com/JuliaSmoothOptimizers/Organization/discussions). This forum is for general discussion about this repository and the [JuliaSmoothOptimizers](https://github.com/JuliaSmoothOptimizers) organization, so questions about any of our packages are welcome.

docs/src/index.md

@@ -1 +1,8 @@
-# QuadraticModels.jl
+# QuadraticModels.jl
+
+## Bug reports and discussions
+
+If you think you found a bug, feel free to open an [issue](https://github.com/JuliaSmoothOptimizers/QuadraticModels.jl/issues).
+Focused suggestions and requests can also be opened as issues. Before opening a pull request, start an issue or a discussion on the topic, please.
+
+If you want to ask a question not suited for a bug report, feel free to start a discussion [here](https://github.com/JuliaSmoothOptimizers/Organization/discussions). This forum is for general discussion about this repository and the [JuliaSmoothOptimizers](https://github.com/JuliaSmoothOptimizers) organization, so questions about any of our packages are welcome.