Softwares-installed.md

-test
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+## Is my software installed or exists ?
+- Check if it is not already installed 
+```
+spack find
+```
+- Otherwise, if spack registry supports it
+```
+spack list | grep -i <my-software>
+```
+## Installed
+| Name   | Version | Make available       | Comment |
+| ------ | ------- | -------------------- | ------- |
+| julia  | 1.5.0   | installed by default | You can download the latest version on your account and use it |
+| gurobi | 9.1.1   | `module load gurobi-9.1.1-gcc-9.3.0-w4lueem` | |
+| python | 3.8.5   | Installed by default | |
+| python | 3.7.7   | module load python-3.7.7-gcc-9.3.0-zc75fej | |
+| java/jdk | 11\.0.10 2021-01-19 | installed by default | |
+| R | 4\.0.2 | module load r-4.0.2-gcc-9.3.0-zv5c7ds | |
+| CPLEX | 20\.1 (`VER=201`)  12\.10 (`VER=1210`) | linker path `/opt/ibm/ILOG/CPLEX_Studio<VER>/cplex/lib/x86-64_linux/static_pic/lib`  compiler path `/opt/ibm/ILOG/CPLEX_Studio<VER>/cplex/include/ilcplex/` | |
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