Examples of tag management.

Signed-off-by: Arun Prakash Jana <engineerarun@gmail.com>

README.md

@@ -184,10 +184,10 @@ The assigned automatic index 15012014 is unique, one greater than highest index
 This option is useful in filling deleted indices from database manually.
 9. **Replace a tag** with new one:
 
-        $ buku -r "old tag" "new tag"
+        $ buku -r 'old tag' 'new tag'
 10. **Delete a tag** from DB:
 
-        $ buku -r "old tag"
+        $ buku -r 'old tag'
 11. **Show info** on bookmark at index 15012014:
 
         $ buku -p 15012014

buku.1

@@ -187,41 +187,55 @@ List \fBall unique tags\fR alphabetically:
 This option is useful in filling deleted indices from database manually.
 .PP
 .IP 9. 4
+\fBReplace a tag\fR with new one:
+.PP
+.EX
+.IP
+.B buku -r 'old tag' 'new tag'
+.PP
+.IP 10. 4
+\fBDelete a tag\fR from DB:
+.PP
+.EX
+.IP
+.B buku -r 'old tag'
+.PP
+.IP 11. 4
 \fBShow info\fR on bookmark at index 15012014:
 .PP
 .EX
 .IP
 .B buku -p 15012014
 .PP
-.IP 10. 4
+.IP 12. 4
 \fBShow all\fR bookmarks with real index from database:
 .PP
 .EX
 .IP
 .B buku -P
 .PP
-.IP 11.4
+.IP 13. 4
 \fBOpen URL\fR at index 15012014 in browser:
 .PP
 .EX
 .IP
 .B buku -o 15012014
 .PP
-.IP 12. 4
+.IP 14. 4
 \fBSearch\fR bookmarks for a tag matching \fBkernel debugging\fR or \fBANY\fR of the keywords \fBkernel\fR and \fBdebugging\fR in URL or title (separately):
 .PP
 .EX
 .IP
 .B buku -s kernel debugging
 .PP
-.IP 13.4
+.IP 15. 4
 \fBSearch\fR bookmarks for a tag matching \fBkernel debugging\fR or \fBALL\fR the keywords \fBkernel\fR and \fBdebugging\fR in URL or title (separately):
 .PP
 .EX
 .IP
 .B buku -S kernel debugging
 .PP
-.IP 14. 4
+.IP 16. 4
 Encrypt/decrypt DB with \fBcustom number of iteration\fR to generate key:
 .PP
 .EX
@@ -236,7 +250,7 @@ Encrypt/decrypt DB with \fBcustom number of iteration\fR to generate key:
 .IP "" 4
 The same number of iterations must be used for one lock & unlock instance.
 .PP
-.IP 15. 4
+.IP 17. 4
 Show \fBdebug info\fR:
 .PP
 .EX