Correct some broken grammar / spelling / syntax / etc.

See https://duckduckgo.com/?q=english+grammar&ia=web ;
https://duckduckgo.com/?q=english+spelling&ia=web and for the lighter side:

* https://www.youtube.com/watch?v=8Gv0H-vPoDc

* https://shlomif.livejournal.com/53966.html

* http://i.imgur.com/HL1ZR.jpg .

README.asciidoc

@@ -7,7 +7,7 @@ image::https://travis-ci.com/shlomif/fortune-mod.svg?branch=master[Travis-CI Bui
 image::https://ci.appveyor.com/api/projects/status/0pbvqd1xa7777aoo/branch/master?svg=true[AppVeyor Build status]
 
 This GitHub repository maintains the sources for fortune-mod, a version
-of https://en.wikipedia.org/wiki/Fortune_%28Unix%29[the UNIX fortune
+of https://en.wikipedia.org/wiki/Fortune_%28Unix%29[the UNIX “fortune”
 command]. `fortune` is a command-line utility which displays a random
 quotation from a collection of quotes. This collection is read from the
 local https://en.wikipedia.org/wiki/File_system[file system] and does
@@ -17,7 +17,7 @@ added by the user.
 
 The canonical repository for the time being is:
 https://github.com/shlomif/fortune-mod . In the future, we may create a
-GitHub organization for it and move the sources there.
+GitHub organization for it, and move the sources there.
 
 For more information about it, you can contact
 https://www.shlomifish.org/[Shlomi Fish] .
@@ -58,9 +58,9 @@ bug]:
 One can find the official release tarballs of fortune-mod as prepared by
 CPack there. They have a proper containing directory. One can also
 download these tarballs from the
-https://github.com/shlomif/fortune-mod/releases[GitHub releases page]
-but please do not use the auto generated “Source code (zip)” and “Source
-code (tar.gz)” downloads which are both incomplete and have extra
+https://github.com/shlomif/fortune-mod/releases[GitHub releases page].
+However, please do not use the auto-generated “Source code (zip)” and “Source
+code (tar.gz)” downloads, which are both incomplete, and have extra
 directories inside.
 
 === Sample usage
@@ -75,38 +75,37 @@ $
 
 === History
 
-I believe fortune-mod was originally forked from the NetBSD version of
-fortune, and ported to run on Linux systems. For some time it was
-maintained at the currently offline redellipse-dot-net inside a
-http://en.wikipedia.org/wiki/GNU_arch[GNU Arch] (= an old and now mostly
-unused version control system) repository, and version 1.99.1 was
-released as a tarball.
+I believe fortune-mod was originally forked from the NetBSD version of fortune,
+and ported to run on Linux systems. For some time, it was maintained at the
+currently offline redellipse-dot-net inside a
+http://en.wikipedia.org/wiki/GNU_arch[GNU Arch] (= an old version control
+system) repository, and version 1.99.1 was released as a tarball.
 
 This maintenance version was initiated by Shlomi Fish, who decided to
-maintain it out of being a fan of the fortune command. It started by
+maintain it, given he is a fan of the fortune command. It started by
 importing the unpacked source of the fortune-mod-1.99.1.tar tarball from
-the Mageia Linux .src.rpm into an empty git repository and continuing
+the Mageia Linux .src.rpm into an empty git repository, and proceeding
 from there.
 
 === What is the difference between fortune-mod and the "normal" fortune?
 
 fortune-mod (= "fortune modified") was the name of a fork of the
 original NetBSD fortune, which was done in order to port the code to
 Linux and apply some other changes. If you are using a Linux
-distribution chances are that the `fortune` executable's package *is*
+distribution, chances are that the `fortune` executable's package *is*
 fortune-mod (although in the case of Debian-and-derivatives it is likely
 very out-of-date as of September 2020).
 
 === Why is it written in C? Can't it be written in Perl, awk, Python, etc.?
 
 The answer has several parts:
 
-First of all note that according to
-https://en.wikipedia.org/wiki/Fortune_%28Unix%29[the wikipedia page] the
-original fortune was created in 1979, before the first version of perl
-was released in 1987, or python, ruby or Lua which were released later,
-and when UNIX-running computers were more underpowered than they are
-today.
+First of all, note that according to
+https://en.wikipedia.org/wiki/Fortune_%28Unix%29[the wikipedia page], the
+original “fortune” was created in 1979. This is before the first version of
+perl was released in 1987, or those of python, ruby, or Lua, which were
+released later, and when UNIX-running computers were more underpowered than
+they are today.
 
 Secondly, you can find some reimplementations of fortune here:
 
@@ -120,14 +119,14 @@ reviewed their source codes.
 Thirdly, most of the value (and relative data size) of the tarball is in
 the quotes collection.
 
-Fourthly, a native executable may still give a
-https://tonsky.me/blog/disenchantment/[better user experience] (I have
-yet to perform a stresstest benchmark though, and I doubt it will matter
-too much for fortune's common use case.)
+Fourthly, a native executable might still provide a
+https://tonsky.me/blog/disenchantment/[better user experience]. However,
+note that I have yet to perform a stresstest benchmark, and I doubt it will
+matter too much for “fortune”'s common use case.
 
-Finally note that the runtime algorithm is not as straightforward as one
-may believe, making use of dat files that contain counts and offsets of
-the fortune "cookies".
+Finally, note that fortune’s runtime algorithm is not as straightforward as one
+may believe, making use of “.dat” files that contain counts and offsets of
+the fortune “cookies”.
 
 === Why did you convert the buildsystem to CMake?
 
@@ -153,7 +152,7 @@ https://en.wikipedia.org/wiki/CMake[CMake] .
 version 2.26.0 and beyond.
 . Fixed some C compiler warnings encountered with the GCC compiler flags
 of
-https://bitbucket.org/shlomif/shlomif-cmake-modules/overview[Shlomif_Common].
+https://github.com/shlomif/shlomif-cmake-modules[Shlomif_Common].
 . Added a build-time option to remove the “-o” (= “offensive”) flag,
 inspired by a set of patches on the Fedora package.
 . Applied some downstream patches.
@@ -195,5 +194,5 @@ of fortune cookies.
 * https://web-cpan.shlomifish.org/modules/XML-Grammar-Fortune/[XML-Grammar-Fortune]
 - an XML grammar for collections of quotes, allowing one to generate
 XHTML or plaintext.
-* http://www.anvari.org/fortune/[Anvari.org’s web interface to fortune]
+* http://www.anvari.org/fortune/[Anvari.org’s web interface to “fortune”]
 - with many collections.