Fix some typos

Source/items.cpp

@@ -303,7 +303,7 @@ void CalcPlrItemVals(int p, BOOL Loadgfx)
 
 	int iflgs = 0; // item_special_effect flags
 
-	int sadd = 0; // added stregth
+	int sadd = 0; // added strength
 	int madd = 0; // added magic
 	int dadd = 0; // added dexterity
 	int vadd = 0; // added vitality

Source/msg.cpp

@@ -109,7 +109,7 @@ void msg_free_packets()
 
 int msg_wait_for_turns()
 {
-	int recieved;
+	int received;
 	DWORD turns;
 
 	if (!sgbDeltaChunks) {
@@ -123,7 +123,7 @@ int msg_wait_for_turns()
 	multi_process_network_packets();
 	nthread_send_and_recv_turn(0, 0);
 	if (nthread_has_500ms_passed(0))
-		nthread_recv_turns(&recieved);
+		nthread_recv_turns(&received);
 
 	if (gbGameDestroyed)
 		return 100;

Source/multi.cpp

@@ -301,7 +301,7 @@ void multi_net_ping()
 
 int multi_handle_delta()
 {
-	int i, recieved;
+	int i, received;
 
 	if (gbGameDestroyed) {
 		gbRunGame = FALSE;
@@ -316,13 +316,13 @@ int multi_handle_delta()
 	}
 
 	sgbSentThisCycle = nthread_send_and_recv_turn(sgbSentThisCycle, 1);
-	if (!nthread_recv_turns(&recieved)) {
+	if (!nthread_recv_turns(&received)) {
 		multi_begin_timeout();
 		return FALSE;
 	}
 
 	sgbTimeout = FALSE;
-	if (recieved) {
+	if (received) {
 		if (!gbShouldValidatePackage) {
 			NetSendHiPri(0, 0);
 			gbShouldValidatePackage = FALSE;

docs/CONTRIBUTING.md

@@ -51,7 +51,7 @@ void __fastcall drlg_l1_load_dun(char *dun_path, int view_x, int view_y);
 
 ### Interactive Disassembler Usage
 
-* Open the `Diablo.exe` (verison 1.09b in IDA) and wait for it to finish
+* Open the `Diablo.exe` (version 1.09b in IDA) and wait for it to finish
   analysis
   * Open as "Portable Executable"
   * Processor type i386 (80386)

structs.h

@@ -501,11 +501,11 @@ typedef struct MonsterData {
 	char mAi;
 	int mFlags;
 	unsigned char mInt;
-	unsigned char mHit; // BUGFIX: Some monsters overflow this value on high dificulty
+	unsigned char mHit; // BUGFIX: Some monsters overflow this value on high difficulty
 	unsigned char mAFNum;
 	unsigned char mMinDamage;
 	unsigned char mMaxDamage;
-	unsigned char mHit2; // BUGFIX: Some monsters overflow this value on high dificulty
+	unsigned char mHit2; // BUGFIX: Some monsters overflow this value on high difficulty
 	unsigned char mAFNum2;
 	unsigned char mMinDamage2;
 	unsigned char mMaxDamage2;