docs: fix more typos

Some identified by frgm

Signed-off-by: Steve Bennett <steveb@workware.net.au>

README.namespaces

@@ -67,7 +67,7 @@ Variable resolution
 The variable command in Jim Tcl has the same syntax as Tcl, but is closer in behaviour to the global command.
 The variable command creates a link from a local variable to a namespace variable, possibly initialising it.
 
-For example, the following procedure uses 'variable' to initialse and access myvar.
+For example, the following procedure uses 'variable' to initialise and access myvar.
 
 proc ::test::myproc {} {
   variable myvar 4
@@ -89,7 +89,7 @@ And similarly, the following will only access local variables
 
 set x 3
 namespace eval ::test {
-	# This will incremement a local variable, not ::x
+	# This will increment a local variable, not ::x
 	incr x
 	# This will also increment a local variable
 	incr abc::def

README.oo

@@ -44,7 +44,7 @@ are prefixed with 'Account' and a space.
 
 PREDEFINED CLASS METHODS
 ------------------------
-Decaring a class pre-defines a number of "class" methods. i.e. those which don't
+Declaring a class pre-defines a number of "class" methods. i.e. those which don't
 require an object and simply return or manipulate properties of the class. These are:
 
   new ?instancevars?::
@@ -84,7 +84,7 @@ For example:
 
 PREDEFINED OBJECT METHODS
 -------------------------
-Decaring a class pre-defines a number of "object" methods. i.e. those which operate
+Declaring a class pre-defines a number of "object" methods. i.e. those which operate
 on a specific object.
 
   destroy::
@@ -122,7 +122,7 @@ For example:
 
 DECLARING METHODS
 -----------------
-In addition to the predefined methods, new methods may be decared, or existing
+In addition to the predefined methods, new methods may be declared, or existing
 methods redefined with the class method, method.
 
 Declaring a method is very similar to defining a proc, and the arglist

README.sqlite

@@ -39,7 +39,7 @@ The query method has the following signature:
 
 The sql query may contain occurrences of "%s" that are substituted
 in the actual query with the following arguments, quoted in order
-to make sure that the query is correct even if this arguments contain
+to make sure that the query is correct even if these arguments contain
 "'" characters. So for example it is possible to write:
 
     . $db query "SELECT * from tbl1 WHERE one='%s'" hello!
@@ -120,7 +120,7 @@ the NULL value as a different string:
     . $db query -null <<NULL>> "SELECT * from tbl1"
     {one hello! two 10} {one goodbye two 20} {one <<NULL>> two 30}
 
-This way if the emtpy string has some semantical value for your
+This way if the empty string has some semantical value for your
 dataset you can change it.
 
 Finding the ID of the last inserted row
@@ -135,7 +135,7 @@ Number of rows changed by the most recent query
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This is also very simple, there is just to use the 'changes' method
-without arugments.
+without arguments.
 
     . $db changes
     5