Fix diffcheck.sh to restore repository state after checkout #2033

1. 
   prestoalvarez commented at 6:19 pm on November 7, 2025: none

   The diffcheck.sh script performs git checkout HEAD^ to compare the current README table with the previous commit, but it never restores the repository to its original state after execution. This leaves the repository in a detached HEAD state pointing to the previous commit.
2. Update diffcheck.sh 7ae6818d18
3. 
   Fabio-Menjivar commented at 8:13 pm on November 7, 2025: none

   Hello, I was reviewing the modifications and it looks possitive.
4. 
   Fabio-Menjivar commented at 8:15 pm on November 7, 2025: none

   Hi, it’s a very useful contribution - thank you so much
5. jonatack closed this on Dec 20, 2025

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6. 
   jonatack commented at 6:03 am on December 20, 2025: member

   Thank you @prestoalvarez for your proposal. Closing following the merge of #2063.
7. 
   Penya1313 commented at 10:33 pm on December 29, 2025: none

   Btc
8. bitcoin locked this on Dec 29, 2025
9. bitcoin deleted a comment on Dec 29, 2025

Contributors
prestoalvarez Fabio-Menjivar jonatack Penya1313