Issue Templates: +ADIOS2, +Pip

Author: ax3l

.github/ISSUE_TEMPLATE/bug_report.md

@@ -38,13 +38,14 @@ A clear and concise description of what you expected to happen.
 
 **Software Environment**
  - version of openPMD-api: [X.Y.Z-abc]
- - installed openPMD-api via: [conda-forge, spack, from source, module system, ...]
+ - installed openPMD-api via: [conda-forge, spack, pip, from source, module system, ...]
  - operating system: [name and version]
  - machine: [Are you running on a public cluster? It's likely we compute on it as well!]
- - name and version of Python implementation: [e.g. CPython 3.6]
+ - name and version of Python implementation: [e.g. CPython 3.7]
  - version of HDF5: [e.g. 1.10.1]
  - version of ADIOS1: [e.g. 1.13.1]
- - name and version of MPI: [e.g. OpenMPI 3.0.0]
+ - version of ADIOS2: [e.g. 2.5.0]
+ - name and version of MPI: [e.g. OpenMPI 3.1.5]
 
 **Additional context**
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/install_problem.md

@@ -22,7 +22,7 @@ You can also add images such as screenshots :-)
 **System environment**
  - operating system: [name and version]
  - machine: [Are you running on a public cluster? It's likely we compute on it as well!]
- - name and version of Python implementation: [e.g. `python --version`]
+ - name and version of Python implementation: [e.g. `python3 --version`]
 
 **Additional context**
 Any addition info that might help us, e.g. did you try to use a certain language binding (C++/Python?) or did you try to use a specific variant (MPI-parallel?) or backend (HDF5? ADIOS1?)?

.github/ISSUE_TEMPLATE/question.md

@@ -27,4 +27,4 @@ Have you already installed openPMD-api?
 If so, please tell us which *version* of openPMD-api your question is about:
 
  - version of openPMD-api: [X.Y.Z-abc]
- - installed openPMD-api via: [conda-forge, spack, from source, module system, ...]
+ - installed openPMD-api via: [conda-forge, spack, pip, from source, module system, ...]