review by @echoix

lib/vector/rtree/docs/sources.htm

@@ -103,7 +103,7 @@
 <p><font size=+1>Implementation of a simple C++ quaternion class called
 "Squat". Popularized by a seminal paper by Ken Shoemake, a quaternion represents
 a rotation about an axis.&nbsp; Squats can be concatenated together via
-the </font><b><tt><font size=+2>*</font></tt></b><font size=+1> and </font><b><tt><font size=+2>*=</font></tt></b><font size=+1>
+the </font><b><code><font size=+2>*</font></code></b><font size=+1> and </font><b><code><font size=+2>*=</font></code></b><font size=+1>
 operators and converted back and forth between transformation matrices.
 Implementation also includes a wonderful 3D vector macro library by Don
 Hatch.</font>

python/grass/docs/src/gunittest_testing.rst

@@ -387,7 +387,7 @@ in different locations.
 .. todo::
     Add example of assertions of key-value results.
 
-Especially if a module module has a lot of different parameters allowed
+Especially if a module has a lot of different parameters allowed
 in different combinations, you should test the if the wrong ones are really
 disallowed and proper error messages are provided (in addition, you can
 test things such as creation and removal of maps in error states).

scripts/i.tasscap/i.tasscap.py

@@ -27,7 +27,7 @@
 #   DERIVATION OF A TASSELED CAP TRANSFORMATION BASED ON LANDSAT 7 AT-SATELLITE REFLECTANCE
 #   Chengquan Huang, Bruce Wylie, Limin Yang, Collin Homer and Gregory Zylstra Raytheon ITSS,
 #   USGS EROS Data Center Sioux Falls, SD 57198, USA
-#   https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1630&context=usgsstaffpub
+#   https://digitalcommons.unl.edu/usgsstaffpub/621/
 #
 #  This is published as well in INT. J. OF RS, 2002, VOL 23, NO. 8, 1741-1748.
 #  Compare discussion: