Update man SEE ALSO sections from .BR to .IR so the website uses URLs

Author: jkbonfield

bgzip.1

@@ -181,6 +181,5 @@ The BGZF library was originally implemented by Bob Handsaker and modified
 by Heng Li for remote file access and in-memory caching.
 
 .SH SEE ALSO
-.PP
-.BR gzip (1),
-.BR tabix (1)
+.IR gzip (1),
+.IR tabix (1)

htslib-s3-plugin.7

@@ -207,8 +207,8 @@ addressing_style or host_bucket.  The first two can be set to \fBpath\fR while
 host_bucket must \fBnot\fR include the \fB%(bucket).s\fR string.
 
 .SH "SEE ALSO"
-.BR htsfile (1)
-.BR samtools (1)
+.IR htsfile (1)
+.IR samtools (1)
 .PP
 RFC 3339: <https://www.rfc-editor.org/rfc/rfc3339#section-5.6>
 .PP

tabix.1

@@ -199,6 +199,5 @@ implemented by Bob Handsaker and modified by Heng Li for remote file
 access and in-memory caching.
 
 .SH SEE ALSO
-.PP
-.BR bgzip (1),
-.BR samtools (1)
+.IR bgzip (1),
+.IR samtools (1)