fix HTML problems associated with leading ---'s

Please do not use "**---**" in markdown lines to separate sections.

This causes `pandoc(1)` to generate "**\<hr />**".

The "**\<hr />**" has no effect in standard HTML 5 and interacts
badly with unquoted attribute values.

If a horizontal line is really needed, use "**\<hr>**".

If a short line is needed, use: "**\<hr
style="width:10%;text-align:left;margin-left:0">**"

1996/august/README.md

@@ -178,7 +178,7 @@ And another...
     cat august.oo august.oo august.oo test.oo | ./august
 ```
 
----
+<hr style="width:10%;text-align:left;margin-left:0">
 
 Fitting the byte code for the compiler into the initial comment
 was a challenge.  I had to strip the compiler/interpreter of
@@ -202,7 +202,7 @@ coder), but decompression then takes up too much code.  Maybe this
 would be a way to fit it all into the 1536 bytes, but I don't have
 time to try it.
 
----
+<hr style="width:10%;text-align:left;margin-left:0">
 
 Execution starts at `main()`.  Nothing can be used before it is
 defined.  `getchar()` and `putchar()` are predefined functions.
@@ -271,7 +271,7 @@ Terminals are in quotes, `()` is used for bracketing.
     stars:		"*"*
 ```
 
----
+<hr style="width:10%;text-align:left;margin-left:0">
 
 
 Well, that is enough ranting for now.

1996/august/index.html

@@ -235,7 +235,7 @@ level of interpretation:</p>
 <pre><code>    cat august.oo august.oo test.oo | ./august</code></pre>
 <p>And another…</p>
 <pre><code>    cat august.oo august.oo august.oo test.oo | ./august</code></pre>
-<hr />
+<hr style="width:10%;text-align:left;margin-left:0">
 <p>Fitting the byte code for the compiler into the initial comment
 was a challenge. I had to strip the compiler/interpreter of
 a lot of functionality to bring down their sizes. The initial
@@ -255,7 +255,7 @@ the code further with a better entropy coder (e.g. an arithmetic
 coder), but decompression then takes up too much code. Maybe this
 would be a way to fit it all into the 1536 bytes, but I don’t have
 time to try it.</p>
-<hr />
+<hr style="width:10%;text-align:left;margin-left:0">
 <p>Execution starts at <code>main()</code>. Nothing can be used before it is
 defined. <code>getchar()</code> and <code>putchar()</code> are predefined functions.</p>
 <p>Below is a description of the OC grammar.</p>
@@ -316,7 +316,7 @@ defined. <code>getchar()</code> and <code>putchar()</code> are predefined functi
                     &quot;char&quot; stars
 
     stars:              &quot;*&quot;*</code></pre>
-<hr />
+<hr style="width:10%;text-align:left;margin-left:0">
 <p>Well, that is enough ranting for now.</p>
 <!--