Fix attempt

Author: ivan-pi

README.md

@@ -28,19 +28,19 @@ Decision tree for systems of nonlinear equations
 
 ```mermaid
 flowchart TB
-	start(Is the Jacobian matrix available?)
-	middle1(Is flexibility required?)
-	middle2(Is flexibility required?)
-	start --- Yes ---> middle1
-	start --- No ---> middle2
-	b1(HYBRJ)
-	b2(HYBRJ1)
-	b3(HYBRD)
-	b4(HYBRD1)
-	middle1 --- Yes ---> b1
-	middle1 --- No ---> b2
-	middle2 --- Yes ---> b3
-	middle2 --- No ---> b3
+	start[Is the Jacobian matrix available?]
+	middle1[Is flexibility required?]
+	middle2[Is flexibility required?]
+	start--Yes-->middle1
+	start--No-->middle2
+	b1[HYBRJ]
+	b2[HYBRJ1]
+	b3[HYBRD]
+	b4[HYBRD1]
+	middle1---Yes--->b1
+	middle1---No--->b2
+	middle2---Yes--->b3
+	middle2---No--->b3
 ```
 
 ### Documentation