docs: fix misspellings

Fixed what I noticed; no warranty for exhaustiveness.

Signed-off-by: Nathan Kidd <nkidd@opentext.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
diff --git a/docs/faq.html b/docs/faq.html
index 97c59d3..d4037e8 100644
--- a/docs/faq.html
+++ b/docs/faq.html
@@ -137,7 +137,7 @@
 <h2>1.6 Are there other open-source implementations of OpenGL?</h2>
 <p>
 Yes, SGI's <a href="http://oss.sgi.com/projects/ogl-sample/index.html">
-OpenGL Sample Implemenation (SI)</a> is available.
+OpenGL Sample Implementation (SI)</a> is available.
 The SI was written during the time that OpenGL was originally designed.
 Unfortunately, development of the SI has stagnated.
 Mesa is much more up to date with modern features and extensions.
@@ -353,7 +353,7 @@
 </p>
 <p>
 The <a href="http://www.opengl.org/documentation">
-OpenGL Specification</a> is the bible for OpenGL implemention work.
+OpenGL Specification</a> is the bible for OpenGL implementation work.
 You should read it.
 </p>
 <p>Most of the Mesa development work involves implementing new OpenGL
@@ -375,7 +375,7 @@
 </p>
 <p>The DRI website has more information about writing hardware drivers.
 The process isn't well document because the Mesa driver interface changes
-over time, and we seldome have spare time for writing documentation.
+over time, and we seldom have spare time for writing documentation.
 That being said, many people have managed to figure out the process.
 </p>
 <p>
@@ -390,7 +390,7 @@
 indicates that there are intellectual property (IP) and/or patent issues
 to be dealt with.
 </p>
-<p>We've been unsucessful in getting a response from S3 (or whoever owns
+<p>We've been unsuccessful in getting a response from S3 (or whoever owns
 the IP nowadays) to indicate whether or not an open source project can
 implement the extension (specifically the compression/decompression
 algorithms).