Add source-related files for gffread/0.12.7

gffread/0.12.7/.gitignore

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+gffread-0.12.7.Linux_x86_64

gffread/0.12.7/README.md

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+# Installation
+
+```bash
+## Commands used for installing the software
+wget https://github.com/gpertea/gffread/releases/download/v0.12.7/gffread-0.12.7.Linux_x86_64.tar.gz
+tar -xzf gffread-0.12.7.Linux_x86_64.tar.gz
+rm gffread-0.12.7.Linux_x86_64.tar.gz
+
+chmod -R 775 .
+
+## Ignore all downloaded/installed files
+echo "gffread-0.12.7.Linux_x86_64" > .gitignore
+
+## Version control files
+git add .gitignore
+git add README.md
+```
+
+# Reproducibility
+
+```bash
+## Evaluate the following commands
+module list
+date
+echo "User: ${USER}"
+echo "Node name: ${SLURMD_NODENAME}"
+```
+
+```bash
+## copy paste the output from the previous commands
+$ module list
+
+Currently Loaded Modules:
+  1) JHPCE_tools/3.0   2) htslib/1.18
+
+
+
+$ date
+Tue Aug 29 03:15:54 PM EDT 2023
+$ echo "User: ${USER}"
+User: neagles
+$ echo "Node name: ${SLURMD_NODENAME}"
+Node name: compute-113
+```