fixed a few typos in the docs

docs/_includes/css/less.html

@@ -92,7 +92,7 @@ a {
   <p>Note that the <code>@link-hover-color</code> uses a function, another awesome tool from Less, to automagically create the right hover color. You can use <code>darken</code>, <code>lighten</code>, <code>saturate</code>, and <code>desaturate</code>.</p>
 
   <h3 id="less-variables-typography">Typography</h3>
-  <p>Easily set your type face, text size, leading, and more with a few quick variables. Bootstrap makes use of these as well to provide easy typographic mixins.</p>
+  <p>Easily set your typeface, text size, leading, and more with a few quick variables. Bootstrap makes use of these as well to provide easy typographic mixins.</p>
 {% highlight scss %}
 @font-family-sans-serif:  "Helvetica Neue", Helvetica, Arial, sans-serif;
 @font-family-serif:       Georgia, "Times New Roman", Times, serif;
@@ -162,7 +162,7 @@ a {
 
   <h3 id="less-mixins-box-sizing">Box-sizing</h3>
   <p>Reset your components' box model with a single mixin. For context, see this <a href="https://developer.mozilla.org/en-US/docs/CSS/box-sizing" target="_blank">helpful article from Mozilla</a>.</p>
-  <p>The mixin is <strong>deprecated</strong> as of v3.2.0, with the introduction of autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixin internally until Bootstrap v4.</p>
+  <p>The mixin is <strong>deprecated</strong> as of v3.2.0, with the introduction of Autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixin internally until Bootstrap v4.</p>
 {% highlight scss %}
 .box-sizing(@box-model) {
   -webkit-box-sizing: @box-model; // Safari <= 5
@@ -205,7 +205,7 @@ a {
 
   <h3 id="less-mixins-transitions">Transitions</h3>
   <p>Multiple mixins for flexibility. Set all transition information with one, or specify a separate delay and duration as needed.</p>
-  <p>The mixins are <strong>deprecated</strong> as of v3.2.0, with the introduction of autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixins internally until Bootstrap v4.</p>
+  <p>The mixins are <strong>deprecated</strong> as of v3.2.0, with the introduction of Autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixins internally until Bootstrap v4.</p>
 {% highlight scss %}
 .transition(@transition) {
   -webkit-transition: @transition;
@@ -237,7 +237,7 @@ a {
 
   <h3 id="less-mixins-transformations">Transformations</h3>
   <p>Rotate, scale, translate (move), or skew any object.</p>
-  <p>The mixins are <strong>deprecated</strong> as of v3.2.0, with the introduction of autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixins internally until Bootstrap v4.</p>
+  <p>The mixins are <strong>deprecated</strong> as of v3.2.0, with the introduction of Autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixins internally until Bootstrap v4.</p>
 {% highlight scss %}
 .rotate(@degrees) {
   -webkit-transform: rotate(@degrees);
@@ -294,7 +294,7 @@ a {
 
   <h3 id="less-mixins-animations">Animations</h3>
   <p>A single mixin for using all of CSS3's animation properties in one declaration and other mixins for individual properties.</p>
-  <p>The mixins are <strong>deprecated</strong> as of v3.2.0, with the introduction of autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixins internally until Bootstrap v4.</p>
+  <p>The mixins are <strong>deprecated</strong> as of v3.2.0, with the introduction of Autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixins internally until Bootstrap v4.</p>
 {% highlight scss %}
 .animation(@animation) {
   -webkit-animation: @animation;

docs/_includes/getting-started/examples.html

@@ -152,7 +152,7 @@
       <a class="thumbnail" href="../examples/offcanvas/">
         <img src="../examples/screenshots/offcanvas.jpg" alt="Off-canvas navigation example">
       </a>
-      <h4>Offcanvas</h4>
+      <h4>Off-canvas</h4>
       <p>Build a toggleable off-canvas navigation menu for use with Bootstrap.</p>
     </div>
   </div>