fix num -> numb typo

examples/command-line-flags/command-line-flags.sh

@@ -31,12 +31,12 @@ tail: [a1 a2 a3]
 # Note that the `flag` package requires all flags to
 # appear before positional arguments (otherwise the flags
 # will be interpreted as positional arguments).
-$ ./command-line-flags -word=opt a1 a2 a3 -num=7
+$ ./command-line-flags -word=opt a1 a2 a3 -numb=7
 word: opt
 numb: 42
 fork: false
 svar: bar
-trailing: [a1 a2 a3 -num=7]
+trailing: [a1 a2 a3 -numb=7]
 
 # Use `-h` or `--help` flags to get automatically
 # generated help text for the command-line program.

public/command-line-flags

@@ -231,12 +231,12 @@ will be interpreted as positional arguments).</p>
 
           </td>
           <td class="code leading">
-            <div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt a1 a2 a3 -num<span class="o">=</span>7
+            <div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt a1 a2 a3 -numb<span class="o">=</span>7
 <span class="go">word: opt</span>
 <span class="go">numb: 42</span>
 <span class="go">fork: false</span>
 <span class="go">svar: bar</span>
-<span class="go">trailing: [a1 a2 a3 -num=7]</span>
+<span class="go">trailing: [a1 a2 a3 -numb=7]</span>
 </pre></div>
 
           </td>

public/environment-variables

@@ -146,7 +146,7 @@ particular machine.</p>
         
         <tr>
           <td class="docs">
-            <p>If we set <code>BAR</code> in the environemnt first, the running
+            <p>If we set <code>BAR</code> in the environment first, the running
 program picks that value up.</p>
 
           </td>