Fix some typos in the documentation

doc/scheduling.qbk

@@ -252,7 +252,7 @@ This class implements __algo__; if the local ready-queue runs out of ready fiber
 from other schedulers.[br]
 The victim scheduler (from which a ready fiber is stolen) is selected at random.
 
-[note Worker-threads are stored in a static variable, dynamically adding/removing worker threads is not supported.]
+[note Worker-threads are stored in a static variable, dynamically adding/removing worker threads is not supported, neither having different worker thread realms at the same time.]
 
         #include <boost/fiber/algo/work_stealing.hpp>
 
@@ -313,7 +313,7 @@ fiber scheduler).]]
 [[Returns:] [the fiber at the head of the ready queue, or `nullptr` if the
 queue is empty.]]
 [[Throws:] [Nothing.]]
-[[Note:] [Placing ready fibers onto the tail of the sahred queue, and returning them
+[[Note:] [Placing ready fibers onto the tail of the shared queue, and returning them
 from the head of that queue, shares the thread between ready fibers in
 round-robin fashion.]]
 ]
@@ -362,7 +362,7 @@ This class implements __algo__, scheduling fibers in round-robin fashion.
 Ready fibers are shared between all instances (running on different threads)
 of shared_work, thus the work is distributed equally over all threads.
 
-[note Worker-threads are stored in a static variable, dynamically adding/removing worker threads is not supported.]
+[note Worker-threads are stored in a static variable, dynamically adding/removing worker threads is not supported, neither having different worker thread realms at the same time.]
 
         #include <boost/fiber/algo/shared_work.hpp>
 

include/boost/fiber/scheduler.hpp

@@ -90,7 +90,7 @@ private:
     // sleep-queue contains context' which have been called
     // scheduler::wait_until()
     sleep_queue_type                                            sleep_queue_{};
-    // worker-queue contains all context' mananged by this scheduler
+    // worker-queue contains all context' managed by this scheduler
     // except main-context and dispatcher-context
     // unlink happens on destruction of a context
     worker_queue_type                                           worker_queue_{};

src/scheduler.cpp

@@ -72,7 +72,7 @@ scheduler::sleep2ready_() noexcept {
     sleep_queue_type::iterator e = sleep_queue_.end();
     for ( sleep_queue_type::iterator i = sleep_queue_.begin(); i != e;) {
         context * ctx = & ( * i);
-        // dipatcher context must never be pushed to sleep-queue
+        // dispatcher context must never be pushed to sleep-queue
         BOOST_ASSERT( ! ctx->is_context( type::dispatcher_context) );
         BOOST_ASSERT( main_ctx_ == ctx || ctx->worker_is_linked() );
         BOOST_ASSERT( ! ctx->ready_is_linked() );
@@ -321,7 +321,7 @@ scheduler::has_ready_fibers() const noexcept {
 
 void
 scheduler::set_algo( algo::algorithm::ptr_t algo) noexcept {
-    // move remaining cotnext in current scheduler to new one
+    // move remaining context in current scheduler to new one
     while ( algo_->has_ready_fibers() ) {
         algo->awakened( algo_->pick_next() );
     }