Fix the remaining fixme's

Note: I've been using kramdown to generate HTML, and kramdown generates
id tags for headings automatically.  Redcarpet does not, and in fact
Redcarpet (the official GFM implementation) does not support any
alternative means of specifying id, class, or other HTMLish things.  In
other words, redcarpet is extremely limited compared to kramdown.

So just use kramdown right?  Well it's not that easy.  Kramdown can
parse GFM, but it has some bugs when doing so.  For example, when fixing
these last fixmes, I had some level three headings, `### stuff`, which
were rendered as `<p>### stuff</p>` rather than `<h3>stuff</h3>`.  Sigh.

When rendering the HTML using kramdown's own syntax variant, it did this
right.  But kramdown's variant has some subtle differences in things
like fenced code blocks.  GitHub will not render kramdown's fenced code
bocks properly, and kramdown will not render GitHub's fenced code blocks
properly unless set to parse GFM.

In terms of source code, that only matters for README.md, since GitHub
only renders README.md for you.  You can't get it to render other .md
files even if you want it to.  That said, using two different Markdown
variants causes problems with confusion regarding what is and isn't
valid Markdown syntax.  As it is, vim doesn't fully recognize either
syntax using any syntax plugin I've tried.  And the precise syntax used
on the GitHub website is obviously going to be GitHub's.

All of this to basically more eloquently say, DAMMIT JOHN GRUBER!  He
readily acknowledges the limitations of the reference implementation of
Markdown, suggests anyone who wants to improve the syntax go and do so,
yet stubbornly refuses any effort to standardize these extensions.  He's
encouraging a thousand niche forks, but actively trying to sabotage any
standardization.  This is a widely acknowledged irritation with the
Markdown family of markup languages.

My notion going forward is that we should assume README.md is in GFM,
and all other .md files are Kramdown format.  If I can come up with a
clever way to indicate this syntactic difference, I will.

docs/ivanx/index.md

@@ -41,7 +41,7 @@ convert the page to Markdown format.
 Hello, and welcome to A2CLOUD! It provides any Apple II — even a IIc — with
 internet access, mass storage, and floppy disk transfer, via a [Raspberry
 Pi][24], a tiny silent $35 computer. You can also use A2CLOUD with other Linux
-computers or virtual machines; [click here][fixme25] for details.
+computers or virtual machines; [click here][25] for details.
 
 This web page is the user guide; just read the posts in order. The table of
 contents is over on the right. You might want to start with the intro video
@@ -217,8 +217,6 @@ you installed a fresh copy of Raspbian, rather than Raspple II). You should
 arrive at the Linux prompt.
 
 
-<a id="xrdp" />
-
 ### Remotely Access the Raspbian desktop
 
 You can access the Raspbian graphical desktop by using remote desktop
@@ -497,7 +495,6 @@ Apple II, and do other stuff on the internet. More on how in a future post.
 (Once you’ve got one of the below terminal programs working, you may also want
 to try out a [faster serial port rate][19] than the default 4800 baud.)
 
-<a id="screen" />
 Once you get comfortable with logging in, you might want
 multiple terminal screens you can switch freely between. To do this,
 type `screen`. Then, whenever you need a new screen, type ctrl-A followed by
@@ -525,8 +522,6 @@ Online. (Thanks to Tony Diaz and Intrec Software for making ProTERM free to
 the community.)
 
  
-<a id="spectrum" />
-
 ### Spectrum
 
 [Spectrum][66], for the Apple IIgs, is not provided on the A2CLOUD disk,
@@ -560,8 +555,6 @@ your A2CLOUD floppy to A2CLOUD.DISK, then copy /A2CLOUD.DISK/Z.LINK.CONFIG to
 /A2CLOUD/Z.LINK.CONFIG.
 
 
-<a id="unenhanced" />
-
 ### Apple II Plus and unenhanced IIe
 
 If you have an Apple II Plus or unehnanced IIe, there have been reports
@@ -790,8 +783,6 @@ you have a preferred NNTP server you would like to use, you can set it by
 typing `a2news -s your.server.address`.)
 
 
-<a id="ttytter" />
-
 ### Twitter
 
 You can indeed tweet from your Apple II, if you can believe it. Type `ttytter`
@@ -807,7 +798,7 @@ beta and may have problems.
 
 There are email programs you can use, but they can be challenging to set up,
 so they have not formally been made a part of A2CLOUD for the moment. If you
-want to give it a go, [see this comment][fixme74] to get started, and look for help
+want to give it a go, [see this comment][74] to get started, and look for help
 on Linux forums if you need it.
 
 
@@ -842,7 +833,7 @@ programs.
 `lynx`\: a text-only web browser which can access simply laid out sites.
 Examples: `lynx ivanx.com`, or a download site, like `lynx
 mirrors.apple2.org.za`. ProTERM and Spectrum work better for lynx than Z-Link
-does. (You can also try out [alternative text-only web browsers][fixme77].)
+does. (You can also try out [alternative text-only web browsers][77].)
 
 `links`\: another text-only web browser you might, or might not, prefer to
 Lynx. If you see only a black screen when you start it, press the ESC key to
@@ -1294,7 +1285,7 @@ enhancements. To update, type `a2cloud-update`.
 
 ### v1.6.6, Feb 17, 2014
 
-* [beta support for Debian and Ubuntu Linux on non-Pi machines][fixme25]
+* [beta support for Debian and Ubuntu Linux on non-Pi machines][25]
 
 * ttytter support for color and avoiding non-ASCII characters when running
   under Screen
@@ -1438,8 +1429,6 @@ Ivan's comments are included below, and obviously the order of posts is fixed
 in this Markdown file.  -Joseph
 -->
 
-## 4 thoughts on “A2CLOUD: other stuff”
-
 ### ivanx, January 26, 2014 at 4:03 pm
 
 [Alistair Ross][88], who suggested the TTYtter client for Twitter that is now
@@ -1539,13 +1528,12 @@ This entry was posted on January 26, 2014 by [ivanx][29].
 [22]: #a2cloud-release-history-and-notes
 [23]: #a2cloud-other-stuff
 [24]: http://www.raspberrypi.org "Raspberry Pi"
-[fixme25]: http://appleii.ivanx.com/prnumber6/open-thread/#comment-9 "A2CLOUD on non-Pi computers"
+[25]: #ivanx-february-17-2014-at-943-pm "A2CLOUD on non-Pi computers"
 [26]: http://appleii.ivanx.com/a2server/ "A2SERVER"
 [27]: http://schmenk.is-a-geek.com/wordpress/ "Apple II Pi"
 [28]: http://appleii.ivanx.com/rasppleii/ "Raspple II"
-[29]: http://appleii.ivanx.com/prnumber6/author/ivanx/ "View all posts by ivanx"
-<!-- FIXME: use mailto:ivan@ivanx.com instead? -->
-[30]: #unenhanced "A2CLOUD: log in from your Apple II"
+[29]: mailto:ivan@ivanx.com "Contact Ivan Drucker"
+[30]: #apple-ii-plus-and-unenhanced-iie "A2CLOUD: log in from your Apple II"
 [31]: http://www.raspberrypi.org/products/ "Raspberry Pi purchase"
 [32]: http://www.amazon.com/s/ref=nb_sb_ss_i_0_4?url=search-alias%3Daps&amp;field-keywords=raspberry+pi+2&amp;sprefix=rasp%2Caps%2C173 "Raspberry Pi 2 Model B search - Amazon"
 [33]: http://www.amazon.com/gp/product/B00LPESRUK/ref=as_li_tl?ie=UTF8&amp;camp=1789&amp;creative=390957&amp;creativeASIN=B00LPESRUK&amp;linkCode=as2&amp;tag=ivane-20&amp;linkId=B7F2LQNXIWGYCNYQ "Raspberry Pi 1 model B+ - Amazon"
@@ -1590,10 +1578,10 @@ This entry was posted on January 26, 2014 by [ivanx][29].
 [71]: http://www.irchelp.org/ "IRC Help"
 [72]: http://www.irssi.org/documentation/ "Irssi Documentation"
 [73]: http://www.floodgap.com/software/ttytter/ "TTYtter"
-[fixme74]: http://appleii.ivanx.com/prnumber6/open-thread/#comment-1 "email on A2CLOUD"
+[74]: #ivanx-january-26-2014-at-403-pm "email on A2CLOUD"
 [75]: http://elinux.org/RPi_Chromium "Chromium (Google Chrome for Raspberry Pi)"
 [76]: http://elinux.org/RPi_IceWeasel "Iceweasel (Firefox for Raspbian)"
-[fixme77]: http://appleii.ivanx.com/prnumber6/open-thread/#comment-2
+[77]: #ivanx-january-26-2014-at-944-pm
 [78]: http://unarchiver.c3.cx/formats "The Unarchiver supported formats"
 [79]: https://groups.google.com/forum/#!searchin/comp.sys.apple2/115200$20hugh "Hugh Hood's 115200 baud ProTERM macros"
 [80]: http://gsport.sourceforge.net/ "GSport"