add explanation for strip function

Dockerfile

@@ -43,6 +43,10 @@ RUN rm /tmp/febio.run && \
     ln -s /opt/FEBioStudio/bin/FEBioStudio /usr/bin/FEBioStudio && \
     ln -s /opt/FEBioStudio/bin/febio4 /usr/bin/febio4
 
+# See https://unix.stackexchange.com/a/700599. libQt6Core.so.6 adds a tag that denotes a minimum kernel version required
+# to run it and is set to 3.17.0, above Centos7's 3.10.0. This is why the library was never found even within a 
+# container despite successfully finding other Qt6 libraries. This command removes that tag so Qt6Core will function on 
+# Linux kernel 3.10.0
 RUN strip --remove-section=.note.ABI-tag /opt/FEBioStudio/lib/libQt6Core.so.6
 
 ENTRYPOINT ["FEBioStudio"]