diff --git a/docs/20210913071110-golang.org.gpg b/docs/20210913071110-golang.org.gpg
deleted file mode 100644
index 97fe0ea..0000000
Binary files a/docs/20210913071110-golang.org.gpg and /dev/null differ
diff --git a/docs/20210913071426-rust.org.gpg b/docs/20210913071426-rust.org.gpg
deleted file mode 100644
index 9f60bd5..0000000
Binary files a/docs/20210913071426-rust.org.gpg and /dev/null differ
diff --git a/docs/20210913071821-nodejs.org.gpg b/docs/20210913071821-nodejs.org.gpg
deleted file mode 100644
index 2091469..0000000
Binary files a/docs/20210913071821-nodejs.org.gpg and /dev/null differ
diff --git a/docs/20210914082351-java.org.gpg b/docs/20210914082351-java.org.gpg
deleted file mode 100644
index e7f2e86..0000000
Binary files a/docs/20210914082351-java.org.gpg and /dev/null differ
diff --git a/docs/20210914082601-openjdk.org.gpg b/docs/20210914082601-openjdk.org.gpg
deleted file mode 100644
index 868e7fc..0000000
Binary files a/docs/20210914082601-openjdk.org.gpg and /dev/null differ
diff --git a/docs/20210914083033-cc.org.gpg b/docs/20210914083033-cc.org.gpg
deleted file mode 100644
index 72660a3..0000000
Binary files a/docs/20210914083033-cc.org.gpg and /dev/null differ
diff --git a/docs/20210914083403-python.org.gpg b/docs/20210914083403-python.org.gpg
deleted file mode 100644
index f485d80..0000000
Binary files a/docs/20210914083403-python.org.gpg and /dev/null differ
diff --git a/docs/20210917130833-programming-languages.org.gpg b/docs/20210917130833-programming-languages.org.gpg
new file mode 100644
index 0000000..484844e
Binary files /dev/null and b/docs/20210917130833-programming-languages.org.gpg differ