added a single additional line to 'index.gmi' to ensure that

a variety of different user's posts is always shown on the main index page.
I also made two changes to 'gemlog.gmi' that fix the handling of tabs and
CRLF newlines respectively. thanks to ~seifferth

gemlog.gmi

@@ -11,10 +11,10 @@ While this is an aggregated gemlog for all users, this does not imply that it is
 
 EOF
 get() {
-grep \
-  '^=>[ ]\+[^ ]\+[ ]\+[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]' \
+grep -P \
+  '^=>[ \t]+[^ \t]+[ \t]+[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]' \
   -s "$@" |
-    sed 's,\t, ,g;s, *$,,
+    sed 's,\r,,g;s,\t, ,g;s, *$,,
 	 s,^/home/,,
 
          # Link processing in sed can be quite messy; Hence the comments