URL fixes, typos etc.

Co-authored-by: Markus Neteler <[email protected]>

i.sentinel_2.vrt.index/i.sentinel_2.vrt.index.html

@@ -1,13 +1,13 @@
 <h2>DESCRIPTION</h2>
 
 <em>i.sentinel_2.vrt.index</em> creates vrts from input rasters using the Band suffixes (e.g. *_B04).
-It then calculates indices using <a href="https://github.com/mundialis/i.sentinel_2/blob/main/i.sentinel_2.parallel.index.html">i.sentinel_2.parallel.index</a>.
+It then calculates various indices using <a href="https://github.com/mundialis/i.sentinel_2/blob/main/i.sentinel_2.parallel.index/i.sentinel_2.parallel.index.html">i.sentinel_2.parallel.index</a>.
 
 <h2>SEE ALSO</h2>
 
 <em>
-    <a href="https://github.com/mundialis/i.sentinel_2/blob/main/i.sentinel_2.parallel.index.html">i.sentinel_2.parallel.index</a> module set,
-    <a href="r.buildvrt">r.buildvrt</a> module set
+<a href="https://github.com/mundialis/i.sentinel_2/blob/main/i.sentinel_2.parallel.index/i.sentinel_2.parallel.index.html">i.sentinel_2.parallel.index</a> module set,
+<a href="r.buildvrt.html">r.buildvrt</a> module set
 </em>
 
 <h2>AUTHOR</h2>

i.sentinel_2.vrt.index/i.sentinel_2.vrt.index.py

@@ -3,8 +3,8 @@
 #
 # MODULE:       i.sentinel_2.vrt.index
 # AUTHOR(S):    Guido Riembauer
-# PURPOSE:      Creates vrts from input rasters with identical Band suffix and
-#               calculates indices parallelly.
+# PURPOSE:      Creates VRTs from input rasters with identical band suffix and
+#               calculates indices in parallel.
 # COPYRIGHT:    (C) 2020-2023 by mundialis GmbH & Co. KG and the
 #               GRASS Development Team
 #
@@ -22,7 +22,7 @@
 ############################################################################
 
 # %module
-# % description: Creates .vrt from input rasters and calculates different indices and texture measures in parallel.
+# % description: Creates GRASS GIS VRT maps from input raster maps and calculates different indices and texture measures in parallel.
 # % keyword: imagery
 # % keyword: satellite
 # % keyword: Sentinel